{"title":"Spool Performance","description":null,"products":[{"product_id":"spool-fx200-hpfp-n20","title":"Spool Performance FX-200 High-Pressure Fuel Pump — N20 \/ N26","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance FX-200 high-pressure fuel pump for the N20\/N26 — the direct-injection pump that clears the Stage 2\/3 fueling ceiling.\u003c\/strong\u003e The factory DI pump runs out of volume as boost and ethanol go up, and the tune starts trimming power to hold rail pressure. The FX-200 roughly doubles stock flow, so fuel stops being the limit.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA direct, plug-and-play replacement for the OEM high-pressure (direct-injection) pump — larger bore, about twice the flow of stock, E85-compatible. A matching calibration has to be loaded before first start.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eThis is the high-pressure (DI) side. On a Stage 3 build it pairs with an upgraded low-pressure in-tank pump so it's always fed — we tune the engine to the fuel system, not the other way around.\u003c\/p\u003e\n\u003ch3\u003eOptions\u003c\/h3\u003e\n\u003cp\u003eSpool offers a wireless ethanol-content analyzer and a 10-micron inline filter as add-ons — tell us if you want either specced in.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW N20\/N26 (F-chassis) — 228i (F22\/F23), 320i\/328i (F30\/F31), 428i (F32\/F33\/F36), 528i (F10). Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-n20\"\u003eFueling Kit — N20\u003c\/a\u003e bundles the matched pump + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"None \/ None","offer_id":43280681140285,"sku":"SP-FX-200-N20-NENF245","price":2205.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ None","offer_id":43280681173053,"sku":"SP-FX-200-N20-NENF245-UE","price":2205.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ None","offer_id":43280681205821,"sku":"SP-FX-200-N20-NENF245-EA","price":2554.0,"currency_code":"USD","in_stock":true},{"title":"None \/ With 10-Micron Filter","offer_id":43280681238589,"sku":"SP-FX-200-N20-NENF245-F","price":2354.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ With 10-Micron Filter","offer_id":43280681271357,"sku":"SP-FX-200-N20-NENF245-UE-F","price":2354.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ With 10-Micron Filter","offer_id":43280681304125,"sku":"SP-FX-200-N20-NENF245-EA-F","price":2703.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/spool-fx200-hpfp-ew.webp?v=1781742886"},{"product_id":"spool-fx200-hpfp-n55","title":"Spool Performance FX-200 High-Pressure Fuel Pump — N55 (F-Chassis)","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance FX-200 high-pressure fuel pump for the F-chassis N55 — the direct-injection pump that clears the Stage 2\/3 fueling ceiling.\u003c\/strong\u003e The factory DI pump runs out of volume as boost and ethanol climb, and the calibration starts trimming power to hold rail pressure. The FX-200 roughly doubles stock flow, so fuel stops being the limit.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA direct, plug-and-play replacement for the OEM high-pressure (direct-injection) pump — larger bore, about twice stock flow, E85-compatible. A matching calibration is loaded before first start.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eThe high-pressure (DI) side; on a Stage 3 build it pairs with an upgraded low-pressure in-tank pump so it stays fed. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eOptions\u003c\/h3\u003e\n\u003cp\u003eSpool offers a wireless ethanol-content analyzer and a 10-micron inline filter as add-ons — tell us if you want either specced in.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW N55 (F-chassis) — F20\/F21 M135i, F22\/F23 M235i, F30 335i, F32\/F33\/F36 435i, F87 M2, F25 X3 35i, F26 X4 35i, F10 535i. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-n55\"\u003eFueling Kit — N55\u003c\/a\u003e bundles the matched pump + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"None \/ None","offer_id":43280681336893,"sku":"SP-FX-200-N55-NENF-DFVA","price":2205.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ None","offer_id":43280681369661,"sku":"SP-FX-200-N55-NENF-DFVA-UE","price":2205.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ None","offer_id":43280681402429,"sku":"SP-FX-200-N55-NENF-DFVA-EA","price":2554.0,"currency_code":"USD","in_stock":true},{"title":"None \/ With 10-Micron Filter","offer_id":43280681435197,"sku":"SP-FX-200-N55-NENF-DFVA-F","price":2354.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ With 10-Micron Filter","offer_id":43280681467965,"sku":"SP-FX-200-N55-NENF-DFVA-UE-F","price":2354.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ With 10-Micron Filter","offer_id":43280681500733,"sku":"SP-FX-200-N55-NENF-DFVA-EA-F","price":2703.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/spool-fx200-hpfp-ew02.webp?v=1781742887"},{"product_id":"spool-fx200-hpfp-b58-gen1","title":"Spool Performance FX-200 High-Pressure Fuel Pump — B58 Gen1 (F-Chassis)","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance FX-200 high-pressure fuel pump for the Gen1 B58 — the direct-injection pump that clears the Stage 2\/3 fueling ceiling.\u003c\/strong\u003e The factory DI pump runs out of volume as boost and ethanol climb, and the tune starts trimming power to hold rail pressure. The FX-200 roughly doubles stock flow, so fuel stops being the limit.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA direct, plug-and-play replacement for the OEM high-pressure (direct-injection) pump — about twice stock flow, E85-compatible. A matching calibration is loaded before first start.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eHigh-pressure (DI) side; pair it with an upgraded low-pressure in-tank pump on a Stage 3 build. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eOptions\u003c\/h3\u003e\n\u003cp\u003eSpool offers a wireless ethanol-content analyzer, a 10-micron inline filter, and a stainless high-pressure line as add-ons — tell us if you want them specced in.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eGen1 B58 (F-chassis) — M240i (F22\/F23), 340i (F30\/F31\/F34), 440i (F32\/F33\/F36), 540i (F10). Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-b58\"\u003eFueling Kit — B58\u003c\/a\u003e bundles the matched pump + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"None \/ None \/ None","offer_id":43280682647613,"sku":"SP-FX-200-B58-1452F","price":2205.0,"currency_code":"USD","in_stock":true},{"title":"None \/ None \/ With Stainless HP Line","offer_id":43280682680381,"sku":"SP-FX-200-B58-1452F-SS","price":2304.0,"currency_code":"USD","in_stock":true},{"title":"None \/ With 10-Micron Filter \/ None","offer_id":43280682713149,"sku":"SP-FX-200-B58-1452F-F","price":2354.0,"currency_code":"USD","in_stock":true},{"title":"None \/ With 10-Micron Filter \/ With Stainless HP Line","offer_id":43280682745917,"sku":"SP-FX-200-B58-1452F-F-SS","price":2453.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ None \/ None","offer_id":43280682778685,"sku":"SP-FX-200-B58-1452F-UE","price":2205.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ None \/ With Stainless HP Line","offer_id":43280682811453,"sku":"SP-FX-200-B58-1452F-UE-SS","price":2304.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ With 10-Micron Filter \/ None","offer_id":43280682844221,"sku":"SP-FX-200-B58-1452F-UE-F","price":2354.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ With 10-Micron Filter \/ With Stainless HP Line","offer_id":43280682876989,"sku":"SP-FX-200-B58-1452F-UE-F-SS","price":2453.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ None \/ None","offer_id":43280682909757,"sku":"SP-FX-200-B58-1452F-EA","price":2554.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ None \/ With Stainless HP Line","offer_id":43280682942525,"sku":"SP-FX-200-B58-1452F-EA-SS","price":2653.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ With 10-Micron Filter \/ None","offer_id":43280682975293,"sku":"SP-FX-200-B58-1452F-EA-F","price":2703.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ With 10-Micron Filter \/ With Stainless HP Line","offer_id":43280683008061,"sku":"SP-FX-200-B58-1452F-EA-F-SS","price":2802.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/spool-fx200-hpfp-ew03.webp?v=1781742887"},{"product_id":"spool-fx350-hpfp-b58-gen2","title":"Spool Performance FX-350 High-Pressure Fuel Pump — B58 Gen2 (G-Chassis)","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance FX-350 high-pressure fuel pump for the Gen2 B58 — a 350-bar pump that takes the direct-injection side well past Stage 2.\u003c\/strong\u003e It moves the FX-200's volume but at 350 bar (5,000 psi), with a stainless, DLC-coated piston and bore, so rail pressure holds where the factory pump folds.\u003c\/p\u003e\n\u003ch3\u003eWhat it supports\u003c\/h3\u003e\n\u003cp\u003eSpool rates the pump alone at roughly 800 whp on gas, 670 on E50, 600 on E85; with their matched Gen2 injectors about 900\/740\/660; and with injectors plus the high-lift exhaust-cam fuel-lobe mod about 1,050\/950\/800. Single pump, plug-and-play, lifetime warranty.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eHigh-pressure (DI) side; it requires an upgraded low-pressure in-tank pump to keep it fed, and a matching calibration. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eOptions\u003c\/h3\u003e\n\u003cp\u003eSpool offers a wireless ethanol-content analyzer and a 10-micron inline filter as add-ons — tell us if you want either specced in.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eGen2 B58 (G-chassis) — M340i (G20\/G21), M440i (G22\/G23\/G26), M240i (G42), Z4 M40i (G29), X3\/X4 M40i (G01\/G02), 540i (G30), 740i (G11\/G12), 840i (G15\/G16), X5\/X6\/X7 40i (G05\/G06\/G07). Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-b58\"\u003eFueling Kit — B58\u003c\/a\u003e bundles the matched pump + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"None \/ None","offer_id":43280683040829,"sku":"SP-B58-FX350-NENF15","price":2435.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ None","offer_id":43280683073597,"sku":"SP-B58-FX350-NENF15-UE","price":2435.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ None","offer_id":43280683106365,"sku":"SP-B58-FX350-NENF15-EA","price":2784.0,"currency_code":"USD","in_stock":true},{"title":"None \/ With 10-Micron Filter","offer_id":43280683139133,"sku":"SP-B58-FX350-NENF15-F","price":2584.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ With 10-Micron Filter","offer_id":43280683171901,"sku":"SP-B58-FX350-NENF15-UE-F","price":2584.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ With 10-Micron Filter","offer_id":43280683204669,"sku":"SP-B58-FX350-NENF15-EA-F","price":2933.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/spool-fx350-hpfp-ew03.webp?v=1781742886"},{"product_id":"spool-fx350-hpfp-s58","title":"Spool Performance FX-350 High-Pressure Fuel Pumps (Pair) — S58","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance FX-350 high-pressure fuel pumps for the S58 — supplied as a matched pair for the engine's dual-pump direct-injection system.\u003c\/strong\u003e Each is a 390-bar (5,600 psi) pump with a stainless, DLC-coated piston and bore; together they deliver about 50% more fuel than the OEM pumps.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA two-pump kit (one per OEM location) — Spool sizes the S58\/S63 V8 pumps at 390 bar rather than the inline-six's 350 bar. Plug-and-play, lifetime warranty, pairs with Spool's Gen2 DI injectors. The kit includes both pumps, brackets, an alignment tool, a triple-layer low-pressure line, and a plug-and-play adapter harness + hardline.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eHigh-pressure (DI) side; run it with an upgraded low-pressure in-tank pump and a matching calibration. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eOptions\u003c\/h3\u003e\n\u003cp\u003eSpool offers a wireless ethanol-content analyzer and a 10-micron inline filter as add-ons — tell us if you want either specced in.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eS58 — G80\/G81 M3, G82\/G83 M4, G87 M2, F97 X3 M, F98 X4 M. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-s58\"\u003eFueling Kit — S58\u003c\/a\u003e bundles the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"None \/ None","offer_id":43280685563965,"sku":"SP-S58-FX350-2","price":5435.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ None","offer_id":43280685596733,"sku":"SP-S58-FX350-2-UE","price":5435.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ None","offer_id":43280685629501,"sku":"SP-S58-FX350-2-EA","price":5784.0,"currency_code":"USD","in_stock":true},{"title":"None \/ With 10-Micron Filter","offer_id":43280685662269,"sku":"SP-S58-FX350-2-F","price":5584.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ With 10-Micron Filter","offer_id":43280685695037,"sku":"SP-S58-FX350-2-UE-F","price":5584.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ With 10-Micron Filter","offer_id":43280685727805,"sku":"SP-S58-FX350-2-EA-F","price":5933.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/spool-fx350-hpfp-ew02.webp?v=1781742886"},{"product_id":"spool-hpfp-s63","title":"Spool Performance FX-350 High-Pressure Fuel Pumps (Pair) — S63 (F90 M5 \/ M8 \/ X5 M \/ X6 M)","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance FX-350 high-pressure fuel pumps for the Gen2 S63 — a matched pair for the twin-turbo V8's dual-pump direct-injection system.\u003c\/strong\u003e Each is a 390-bar (5,600 psi) pump with a stainless, DLC-coated piston and bore; together about 50% more fuel than the OEM pumps.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA two-pump kit (one per OEM location), 390 bar. Plug-and-play, lifetime warranty, pairs with Spool's Gen2 DI injectors. Includes both pumps, brackets, an alignment tool, a triple-layer low-pressure line, and a plug-and-play adapter harness + hardline.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eHigh-pressure (DI) side; run it with an upgraded low-pressure in-tank pump and a matching calibration. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eOptions\u003c\/h3\u003e\n\u003cp\u003eSpool offers a wireless ethanol-content analyzer and a 10-micron inline filter as add-ons — tell us if you want either specced in.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eGen2 S63 — F90 M5, F91\/F92\/F93 M8, F95 X5 M, F96 X6 M. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-s63\"\u003eFueling Kit — S63\u003c\/a\u003e bundles the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"None \/ None","offer_id":43280685760573,"sku":"SP-S63-FX350-2","price":5435.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ None","offer_id":43280685793341,"sku":"SP-S63-FX350-2-UE","price":5435.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ None","offer_id":43280685826109,"sku":"SP-S63-FX350-2-EA","price":5784.0,"currency_code":"USD","in_stock":true},{"title":"None \/ With 10-Micron Filter","offer_id":43280685858877,"sku":"SP-S63-FX350-2-F","price":5584.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ With 10-Micron Filter","offer_id":43280685891645,"sku":"SP-S63-FX350-2-UE-F","price":5584.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ With 10-Micron Filter","offer_id":43280685924413,"sku":"SP-S63-FX350-2-EA-F","price":5933.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/spool-fx350-hpfp-ew.webp?v=1781742886"},{"product_id":"spool-b58-cam-fuel-lobe-mod","title":"Spool Performance B58 Gen1 Exhaust Cam — Fuel-Lobe Machining (+40% HPFP)","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance fuel-lobe machining for the Gen1 B58 exhaust camshaft — a re-profiled HPFP drive lobe that raises direct-injection fuel volume by about 40%.\u003c\/strong\u003e The B58's high-pressure pump is driven off a lobe on the exhaust cam; Spool re-profiles that lobe with more lift on CNC live-tooling lathes, then re-hardens and polishes it, so the pump delivers more fuel per revolution.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA machining service on the exhaust camshaft, not an off-the-shelf part. Combined with Spool FX pumps and matched injectors, it pushes the direct-injection ceiling north of 900 whp on full E85 and past 1,000 whp on E50 or less. \u003cstrong\u003eOnly compatible with Spool Performance FX pumps.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eTwo ways to buy\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWe source the cam\u003c\/strong\u003e — we supply the core and return a finished, ready-to-install camshaft. \u003cstrong\u003eI provide my core\u003c\/strong\u003e — send us your exhaust cam and we machine, re-harden, polish, and return it (about two business days in the shop). Choose above.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eA fuel-capacity mod on the high-pressure side, for big-power E85\/E50 B58 builds already running Spool fueling. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eGen1 B58 (F-chassis) — M240i, 340i, 440i, 540i and related Gen1 B58 applications. Confirm your chassis in the selector.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"We source the cam","offer_id":43280685957181,"sku":"SP-B58-G1CAM","price":1415.0,"currency_code":"USD","in_stock":true},{"title":"I provide my core","offer_id":43280685989949,"sku":"SP-B58-G1CAM-CORE","price":1115.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/Spool_fuel_cam_b58.webp?v=1781742887"},{"product_id":"spool-fx170-hpfp-b48","title":"Spool Performance FX-170 High-Pressure Fuel Pump — B48 \/ B46","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance FX-170 high-pressure fuel pump for the B48\/B46 — the entry direct-injection pump upgrade for the four-cylinder.\u003c\/strong\u003e The factory DI pump caps fueling once you raise boost or run ethanol; the FX-170 lifts that ceiling with about 50% more flow than stock (roughly 1.34 cc\/rev versus the factory 0.89) and a higher working pressure.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA plug-and-play replacement for the OEM high-pressure (direct-injection) pump, E85-compatible. It's the step below Spool's FX-200 — the right pump for a strong Stage 2\/3 B48 on pump gas or ethanol without going to the larger pump. Spool has since discontinued the FX-170; we still source them.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eHigh-pressure (DI) side; pair it with an upgraded low-pressure in-tank pump on a Stage 3 build. A matching calibration is loaded before first start.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW \u0026amp; MINI B48\/B46 — 230i (F22\/F23), 330i (F30\/F31), 430i (F32\/F33\/F36), and B46\/B48 MINI Cooper S \/ JCW. Confirm your chassis in the selector.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"Default Title","offer_id":43280695427133,"sku":"SP-FX-200-B48-NENF","price":2205.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/spool_fx_170_01.webp?v=1781743118"},{"product_id":"spool-fx400x-hpfp-b58-gen2","title":"Spool Performance FX-400X High-Pressure Fuel Pump (Stage 4) — B58 Gen2 (G-Chassis)","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance FX-400X — the flagship \"Stage 4\" high-pressure fuel pump for the Gen2 B58.\u003c\/strong\u003e It runs the same 350 bar (5,000 psi) as the FX-350 but moves about 20% more fuel across the whole delivery range, for builds that have outgrown the FX-350.\u003c\/p\u003e\n\u003ch3\u003eWhat it supports\u003c\/h3\u003e\n\u003cp\u003eWith Spool's Gen2 DI injectors, roughly 1,100 whp on gas, 900 on E50, 800 on E85; add the high-lift exhaust-cam fuel-lobe mod and about 1,200\/1,050\/900. Single pump, plug-and-play, lifetime warranty.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eHigh-pressure (DI) side; requires an upgraded low-pressure in-tank pump and a matching calibration. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eOptions\u003c\/h3\u003e\n\u003cp\u003eSpool offers a wireless ethanol-content analyzer and a 10-micron inline filter as add-ons — tell us if you want either specced in.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eGen2 B58 (G-chassis) — M340i (G20\/G21), M440i (G22\/G23\/G26), M240i (G42), Z4 M40i (G29), and the rest of the Gen2 B58 range. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-b58\"\u003eFueling Kit — B58\u003c\/a\u003e bundles the matched pump + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"None \/ None","offer_id":43280695492669,"sku":"SP-FX400X-NENF-6D","price":3035.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ None","offer_id":43280695525437,"sku":"SP-FX400X-NENF-6D-UE","price":3035.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ None","offer_id":43280695558205,"sku":"SP-FX400X-NENF-6D-EA","price":3384.0,"currency_code":"USD","in_stock":true},{"title":"None \/ With 10-Micron Filter","offer_id":43280695590973,"sku":"SP-FX400X-NENF-6D-F","price":3184.0,"currency_code":"USD","in_stock":true},{"title":"Use my existing \/ With 10-Micron Filter","offer_id":43280695623741,"sku":"SP-FX400X-NENF-6D-UE-F","price":3184.0,"currency_code":"USD","in_stock":true},{"title":"Include \/ With 10-Micron Filter","offer_id":43280695656509,"sku":"SP-FX400X-NENF-6D-EA-F","price":3533.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/spool_fx-400x_b58_g2_ew.webp?v=1781742886"},{"product_id":"spool-stage3-lpfp-s58","title":"Spool Performance Stage 3 Low-Pressure Fuel Pump — S58","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance Stage 3 low-pressure fuel pump for the S58 — the in-tank side that keeps a Stage 3 build fed.\u003c\/strong\u003e A big high-pressure pump is only as good as what feeds it; the factory in-tank (low-pressure) pump runs out of duty on E85 and high boost, and rail pressure drops up top. Spool's Stage 3 adds a boost-activated secondary in-tank pump, roughly doubling low-pressure flow.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA twin-pump in-tank upgrade: the factory pump plus a second pump that switches on under boost (boost\/Hobbs-switch activated), so cruise stays factory-quiet and the system only ramps when you're on it. Spool rates it to support 1,200+ whp. Supplied as a complete drop-in assembly; DIY and built-bucket formats are also available — ask if you'd prefer one.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eLow-pressure (in-tank) side; it pairs with an upgraded high-pressure (DI) pump so the HPFP is never starved. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eS58 — G80\/G81 M3, G82\/G83 M4, G87 M2, F97 X3 M, F98 X4 M. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-s58\"\u003eFueling Kit — S58\u003c\/a\u003e bundles the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"Assembled","offer_id":43280695722045,"sku":"SP-S58-DIYLPFP","price":935.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/Spool_stage3_lpfp_jpg.png?v=1781742666"},{"product_id":"spool-stage3-lpfp-s63","title":"Spool Performance Stage 3 Low-Pressure Fuel Pump — S63 \/ S63TU","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance Stage 3 low-pressure fuel pump for the S63 and S63TU — the in-tank side that keeps a Stage 3 V8 build fed.\u003c\/strong\u003e The factory in-tank (low-pressure) pumps run out of duty on E85 and high boost, and rail pressure drops up top. Spool's Stage 3 adds a boost-activated secondary pump, roughly doubling low-pressure flow.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA twin-pump in-tank upgrade that switches on the second pump under boost (boost\/Hobbs-switch activated) — cruise stays factory-quiet, the system only ramps when you're on it. Spool rates it to support 1,200+ whp. Pick your chassis above: the earlier S63TU M5\/M6 (F10\/F12\/F13) and the Gen2 S63 M5\/M8 (F90\/F9x) use different assemblies and price accordingly.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eLow-pressure (in-tank) side; pairs with an upgraded high-pressure (DI) pump so the HPFP is never starved. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eS63 \/ S63TU — F10 M5, F06\/F12\/F13 M6 (S63TU); F90 M5, F91\/F92\/F93 M8 (Gen2 S63). Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-s63\"\u003eFueling Kit — S63\u003c\/a\u003e bundles the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"F10 \/ F12 \/ F13","offer_id":43280695754813,"sku":"SP-LS3-S63","price":815.0,"currency_code":"USD","in_stock":true},{"title":"F90 \/ F91 \/ F92 \/ F93","offer_id":43280695787581,"sku":"SP-LS3-S63-G2","price":1715.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/Spool_stage3_lpfp_jpg.png?v=1781742666"},{"product_id":"spool-stage3-lpfp-s55","title":"Spool Performance Stage 3 Low-Pressure Fuel Pump — S55","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance Stage 3 low-pressure fuel pump for the S55 — F80 M3, F82\/F83 M4, F87 M2 Competition.\u003c\/strong\u003e A big high-pressure pump is only as good as what feeds it; the factory in-tank (low-pressure) pump runs out of duty on E85 and high boost, and rail pressure drops up top. Spool's Stage 3 adds a boost-activated secondary in-tank pump, roughly doubling low-pressure flow.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA twin-pump in-tank upgrade: the factory pump plus a second pump that switches on under boost (boost\/Hobbs-switch activated), so cruise stays factory-quiet and the system only ramps when you're on it. Spool rates it to support 1,200+ whp, and it's a complete drop-in replacement — no assembly or core return.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eLow-pressure (in-tank) side; it pairs with an upgraded high-pressure (DI) pump so the HPFP is never starved. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eS55 — F80 M3, F82 M4, F83 M4 Convertible, F87 M2 Competition. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-s55\"\u003eFueling Kit — S55\u003c\/a\u003e bundles the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"Assembled","offer_id":43280699260989,"sku":"SP-BMF8x-FP","price":1295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/spool-stage3-lpfp-s55.jpg?v=1781742593"},{"product_id":"spool-stage3-lpfp-b58","title":"Spool Performance Stage 3 Low-Pressure Fuel Pump — B58","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance Stage 3 low-pressure fuel pump for the B58 — the in-tank side that keeps a Stage 3 build fed.\u003c\/strong\u003e A big high-pressure pump is only as good as what feeds it; the factory in-tank (low-pressure) pump runs out of duty on E85 and high boost, and rail pressure drops up top. Spool's Stage 3 adds a boost-activated secondary in-tank pump, roughly doubling low-pressure flow.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA twin-pump in-tank upgrade: the factory pump plus a second pump that switches on under boost (boost\/Hobbs-switch activated), so cruise stays factory-quiet and the system only ramps when you're on it. Spool rates it to support 1,000+ whp. Built around your bucket — send-your-core, bucket trade-in, and new-build options are available; ask which suits you.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eLow-pressure (in-tank) side; it pairs with an upgraded high-pressure (DI) pump so the HPFP is never starved. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eB58 — M240i (F22), 340i (F30), 440i (F32), M340i (G20), M440i (G22), Z4 M40i (G29), M240i (G42). Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-b58\"\u003eFueling Kit — B58\u003c\/a\u003e bundles the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"Send your core","offer_id":43280699392061,"sku":"SP-BMB58G-LPFP-DY","price":1055.0,"currency_code":"USD","in_stock":true},{"title":"Bucket trade-in","offer_id":43280699424829,"sku":"SP-BMB58G-LPFP-DY-BT","price":1254.0,"currency_code":"USD","in_stock":true},{"title":"New bucket build","offer_id":43280699457597,"sku":"SP-BMB58G-LPFP-DY-NB","price":1354.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/Spool__copy-of-g20-g22-g30-g32-g11-g12-b58-stage-3-low-pressure-fuel-pump-diy-kit__1.png?v=1781742211"},{"product_id":"spool-stage3-lpfp-b48","title":"Spool Performance Stage 3 Low-Pressure Fuel Pump — B48 \/ B46","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance Stage 3 low-pressure fuel pump for the B48\/B46 — the in-tank side that keeps a Stage 3 four-cylinder build fed.\u003c\/strong\u003e A bigger high-pressure pump is only as good as what feeds it; the factory in-tank (low-pressure) pump runs out of duty on E85 and high boost, and rail pressure drops up top. Spool's Stage 3 adds a boost-activated secondary in-tank pump, roughly doubling low-pressure flow.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA twin-pump in-tank upgrade: the factory pump plus a second pump that switches on under boost (boost\/Hobbs-switch activated), so cruise stays factory-quiet and the system only ramps when you're on it. Spool rates it to support 1,000+ whp. Built around your bucket — send-your-core, bucket trade-in, and new-build options are available; ask which suits you.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eLow-pressure (in-tank) side; it pairs with an upgraded high-pressure (DI) pump so the HPFP is never starved. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW \u0026amp; MINI B48\/B46 — 230i (F22), 330i (F30), 430i (F32\/F33\/F36), and B46\/B48 MINI Cooper S \/ JCW. Confirm your chassis in the selector.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"Send your core","offer_id":43280699490365,"sku":"SP-B58-LPDI-3","price":1055.0,"currency_code":"USD","in_stock":true},{"title":"Bucket trade-in","offer_id":43280699523133,"sku":"SP-B58-LPDI-3-BT","price":1254.0,"currency_code":"USD","in_stock":true},{"title":"New bucket build","offer_id":43280699555901,"sku":"SP-B58-LPDI-3-NB","price":1354.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/Spool__bmw-b48-upgraded-stage-3-low-pressure-fuel-pump__1.jpg?v=1781742211"},{"product_id":"spool-stage3-lpfp-n20","title":"Spool Performance Stage 3 Low-Pressure Fuel Pump — N20 \/ N26","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance Stage 3 low-pressure fuel pump for the N20\/N26 — the in-tank side that keeps a Stage 3 build fed.\u003c\/strong\u003e A bigger high-pressure pump is only as good as what feeds it; the factory in-tank (low-pressure) pump runs out of duty on E85 and high boost, and rail pressure drops up top. Spool's Stage 3 adds a boost-activated secondary in-tank pump, roughly doubling low-pressure flow.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA twin-pump in-tank upgrade: the factory pump plus a second pump that switches on under boost — it ships with Spool's Hobbs (boost) switch for activation, so cruise stays factory-quiet and the system only ramps when you're on it. Spool rates it to support 1,200+ whp, and it's a complete drop-in replacement.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eLow-pressure (in-tank) side; it pairs with an upgraded high-pressure (DI) pump so the HPFP is never starved. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW N20\/N26 (F-chassis) — 228i (F22\/F23), 320i\/328i (F30\/F31), 428i (F32\/F33\/F36), 528i (F10). Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-n20\"\u003eFueling Kit — N20\u003c\/a\u003e bundles the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"Spool Hobbs Switch","offer_id":43280699588669,"sku":"SP-BMFXXN20-FP","price":935.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/Spool__f-chassis-n20-n26-stage-3-low-pressure-fuel-pump__1.jpg?v=1781742211"},{"product_id":"spool-stage3-lpfp-n55","title":"Spool Performance Stage 3 Low-Pressure Fuel Pump — N55 (F-Chassis)","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance Stage 3 low-pressure fuel pump for the F-chassis N55 — the in-tank side that keeps a Stage 3 build fed.\u003c\/strong\u003e A bigger high-pressure pump is only as good as what feeds it; the factory in-tank (low-pressure) pump runs out of duty on E85 and high boost, and rail pressure drops up top. Spool's Stage 3 adds a boost-activated secondary in-tank pump, roughly doubling low-pressure flow.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA twin-pump in-tank upgrade: the factory pump plus a second pump that switches on under boost — it ships with Spool's Hobbs (boost) switch for activation, so cruise stays factory-quiet and the system only ramps when you're on it. Spool rates it to support 1,200+ whp, and it's a complete drop-in replacement.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eLow-pressure (in-tank) side; it pairs with an upgraded high-pressure (DI) pump so the HPFP is never starved. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW N55 (F-chassis) — F20\/F21 M135i, F22\/F23 M235i, F30 335i, F32\/F33\/F36 435i, F87 M2. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eSourcing fueling with the tune? The \u003ca href=\"\/products\/fueling-kit-n55\"\u003eFueling Kit — N55\u003c\/a\u003e bundles the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"Spool Hobbs Switch","offer_id":43280702341181,"sku":"SP-BMFXXN-FP","price":935.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/Spool__fxx-n55-stage-3-low-pressure-fuel-pump__1.jpg?v=1781742211"},{"product_id":"spool-stage3-lpfp-n63","title":"Spool Performance Stage 3 Low-Pressure Fuel Pump — N63TU (550i \/ 650i)","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance Stage 3 low-pressure fuel pump for the N63TU — the in-tank side that keeps a Stage 3 V8 build fed.\u003c\/strong\u003e The factory in-tank (low-pressure) pumps run out of duty on E85 and high boost, and rail pressure drops up top. Spool's Stage 3 adds a boost-activated secondary in-tank pump, roughly doubling low-pressure flow so a Stage 3 calibration isn't trimming power to stay safe.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA twin-pump in-tank upgrade (sold as a DIY kit): the factory pump plus a second pump that switches on under boost — it ships with Spool's Hobbs (boost) switch for activation, so cruise stays factory-quiet and the system only ramps when you're on it. Spool rates it to support 1,200+ whp.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eLow-pressure (in-tank) side; it pairs with an upgraded high-pressure (DI) pump so the HPFP is never starved. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW N63TU — 550i (F10), 650i (F06\/F12\/F13). Confirm your chassis in the selector.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"Spool Hobbs Switch","offer_id":43280702373949,"sku":"SP-LS3-N63","price":815.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/Spool_stage3_lpfp_jpg.png?v=1781742666"},{"product_id":"spool-fx170-hpfp-s63","title":"Spool Performance FX-170 High-Pressure Fuel Pumps (Pair) — S63 \/ S63TU (F10 M5 \/ M6 \/ X5 M \/ X6 M)","description":"\u003cp\u003e\u003cstrong\u003eSpool Performance FX-170 high-pressure fuel pumps for the S63 \/ S63TU — supplied as a matched pair for the V8's dual-pump direct-injection system.\u003c\/strong\u003e The factory DI pumps cap fueling once you raise boost or run ethanol; the FX-170 lifts that ceiling with about 50% more flow than stock per pump.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA two-pump set (one per OEM location) of Spool's FX-170 direct-injection pump — E85-compatible, plug-and-play, the entry tier in Spool's FX line. Spool has discontinued the FX-170; we source them. A matching calibration is loaded before first start.\u003c\/p\u003e\n\u003ch3\u003eWhich S63 this is for\u003c\/h3\u003e\n\u003cp\u003eThis covers the earlier S63 \/ S63TU M-cars — F10 M5, F06\/F12\/F13 M6, F85 X5 M, F86 X6 M. The later Gen2 S63 (F90 M5, F9x M8, F95 X5 M, F96 X6 M) uses the larger FX-350 pair instead.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eHigh-pressure (DI) side; pair it with an upgraded low-pressure in-tank pump so the pumps stay fed. We tune the engine to the fuel system.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eS63 \/ S63TU — F10 M5, F06 M6 Gran Coupe, F12\/F13 M6, F85 X5 M, F86 X6 M. Confirm your chassis in the selector.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"Matched Pair","offer_id":43280747266109,"sku":"SP-FX-S63-FX170","price":2286.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/spool_fx_170_02.webp?v=1781743119"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/collections\/spool_brand.svg?v=1781758306","url":"https:\/\/essewerks.com\/collections\/spool-performance.oembed","provider":"Esse Werks","version":"1.0","type":"link"}