{"title":"CSF","description":null,"products":[{"product_id":"csf-hx-b58","title":"CSF High-Performance Heat Exchanger — B58 (G2x \/ G4x \/ Z4)","description":"\u003cp\u003e\u003cstrong\u003eCSF front-mount heat exchanger for the Gen-2 B58 — the radiator side of the water-to-air charge-cooling system.\u003c\/strong\u003e On these cars the intake charge is cooled by a coolant loop, and this front exchanger is what pulls heat back out of that coolant. The factory unit is a single-row, ~25mm core; once boost goes up it can't shed heat fast enough and intake temps climb pull after pull.\u003c\/p\u003e\n\u003ch3\u003eWhat CSF changes\u003c\/h3\u003e\n\u003cp\u003eA 2-row, 42mm core using CSF's B-Tube internal geometry — far more cooling capacity than the OEM single-row piece. All-aluminum and TIG-welded, with an included rock guard and OEM transmission-cooler mounting points built in. Drop-in fit using the factory locations and quick-connect lines.\u003c\/p\u003e\n\u003ch3\u003eFinishes\u003c\/h3\u003e\n\u003cp\u003eWe spec these with a \u003cstrong\u003eThermal Heat Dispersion coating by default\u003c\/strong\u003e — an emissivity coating that helps the core radiate heat away, which is exactly what you want on a cooler. Prefer to skip it? Raw or Black are available for less. Choose above.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eGen-2 B58 — G20\/G21 330i \u0026amp; M340i, G22\/G23\/G26 430i \u0026amp; M440i, G42 M240i, and G29 Z4. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eThis is the heat-exchanger-side core of a B58 Stage 2 build. The \u003ca href=\"\/products\/stage-2-kit-b58\"\u003eStage 2 Kit — B58\u003c\/a\u003e packages the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Thermal Heat Dispersion","offer_id":43280696999997,"sku":"CSF 8154","price":1105.0,"currency_code":"USD","in_stock":true},{"title":"Raw","offer_id":43280697032765,"sku":"CSF 8154","price":905.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43280697065533,"sku":"CSF 8154","price":905.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/csf-f3x-f2x-b58-b48-triple-pass-02.webp?v=1781742886"},{"product_id":"csf-ic-n55-fchassis","title":"CSF Stepped-Core Intercooler — N55 (F2x \/ F3x \/ F87 M2)","description":"\u003cp\u003e\u003cstrong\u003eCSF stepped-core front-mount intercooler for the N55 — a direct air-to-air upgrade for the F2x\/F3x and F87 M2.\u003c\/strong\u003e Unlike the water-to-air cars, the N55 cools its charge air with a front-mount intercooler; the OEM core heat-soaks under repeat pulls and bleeds power as intake temps rise.\u003c\/p\u003e\n\u003ch3\u003eWhat CSF changes\u003c\/h3\u003e\n\u003cp\u003eCSF's stepped-core design fills the available opening more completely than a flat core — they call it the largest drop-in intercooler in the class. Bar-and-plate core, rounded cast end-tanks, developed in CSF's wind tunnel and 3D-scanned for fit. CSF measures intake temps about 38°F (21°C) lower than stock after three consecutive pulls. Fully reversible to OEM.\u003c\/p\u003e\n\u003ch3\u003eFinishes\u003c\/h3\u003e\n\u003cp\u003eWe spec these with a \u003cstrong\u003eThermal Heat Dispersion coating by default\u003c\/strong\u003e — an emissivity coating that helps the core radiate heat away, which is exactly what you want on a cooler. Prefer to skip it? Raw or Black are available for less. Choose above.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eN55 — F30\/F31\/F34 335i, F32\/F33\/F36 435i, F22\/F23 M235i, and F87 M2 (N55, 2016–2018). Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eThis is the intercooler-side core of an N55 Stage 2 build. The \u003ca href=\"\/products\/stage-2-kit-n55\"\u003eStage 2 Kit — N55\u003c\/a\u003e packages the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Thermal Heat Dispersion","offer_id":43280708468797,"sku":"CSF 8115","price":895.0,"currency_code":"USD","in_stock":true},{"title":"Raw","offer_id":43280708501565,"sku":"CSF 8115","price":695.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43280708534333,"sku":"CSF 8115B","price":695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/CSF_intercooler_F87m2_n55.webp?v=1781742886"},{"product_id":"csf-cac-b58-gen2","title":"CSF Billet Charge-Air-Cooler Manifold — B58 Gen2 (G-chassis)","description":"\u003cp\u003e\u003cstrong\u003eCSF billet charge-air-cooler manifold for the Gen-2 B58 (G-chassis).\u003c\/strong\u003e This replaces the factory plastic intake manifold and its integrated water-to-air charge cooler with a CNC-billet manifold and a far larger, more efficient cooler core — the heart of the charge-cooling system, not a bolt-on around it.\u003c\/p\u003e\n\u003ch3\u003eWhat CSF changes\u003c\/h3\u003e\n\u003cp\u003eBillet aluminum construction with a high-capacity integrated charge-cooler core, sensor ports, and a port-injection-ready fuel rail. It pairs with the front heat exchanger to hold intake temps under sustained boost where the OEM plastic unit can't.\u003c\/p\u003e\n\u003ch3\u003eFinishes\u003c\/h3\u003e\n\u003cp\u003eDefault is the \u003cstrong\u003eThermal Heat Dispersion coating\u003c\/strong\u003e — an emissivity coating that helps the part shed heat. Also available Raw, or in Esse Werks colors — Black, White, or Orange. Choose above.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eGen-2 B58 — G20\/G21 M340i, G22\/G23\/G26 M440i, G42 M240i, G29 Z4 M40i, G01 X3 M40i, G02 X4 M40i, G05 X5 40i, G06 X6 40i, G07 X7 40i, G11\/G12 740i, G14–G16 840i, G30 540i. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eThis is the charge-cooler-side core of a B58 Stage 2 build. The \u003ca href=\"\/products\/stage-2-kit-b58\"\u003eStage 2 Kit — B58\u003c\/a\u003e packages the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Thermal Heat Dispersion","offer_id":43280710402109,"sku":"CSF 8200","price":5425.0,"currency_code":"USD","in_stock":true},{"title":"Raw","offer_id":43280710434877,"sku":"CSF 8200","price":5225.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43280710467645,"sku":"CSF 8200","price":5225.0,"currency_code":"USD","in_stock":true},{"title":"White","offer_id":43280710500413,"sku":"CSF 8200","price":5425.0,"currency_code":"USD","in_stock":true},{"title":"Orange","offer_id":43280710533181,"sku":"CSF 8200","price":5425.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/CSF_cooler_manifold_B58g2.webp?v=1781742887"},{"product_id":"csf-cac-b58-gen1","title":"CSF Billet Charge-Air-Cooler Manifold — B58 Gen1 (F-chassis)","description":"\u003cp\u003e\u003cstrong\u003eCSF billet charge-air-cooler manifold for the Gen-1 B58 (F-chassis).\u003c\/strong\u003e Replaces the OEM plastic manifold and its integrated water-to-air charge cooler with a CNC-billet manifold and a larger cooler core.\u003c\/p\u003e\n\u003ch3\u003eWhat CSF changes\u003c\/h3\u003e\n\u003cp\u003eBillet aluminum with roughly twice the cooling rows of the factory core, machined intake runners that seal to the OEM O-rings, and a thermal-rejection competition spacer. All fittings included; pairs with the front heat exchanger.\u003c\/p\u003e\n\u003ch3\u003eFinishes\u003c\/h3\u003e\n\u003cp\u003eDefault is the \u003cstrong\u003eThermal Heat Dispersion coating\u003c\/strong\u003e — an emissivity coating that helps the part shed heat. Also available Raw, or in Esse Werks colors — Black, White, or Orange. Choose above.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eGen-1 B58 (B58B30M0) — F22\/F23 M240i, F30 340i, F31 340i Touring, F32\/F33 440i, F34 340i GT, F36 440i Gran Coupe (2016–2019). Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eThis is the charge-cooler-side core of a B58 Stage 2 build. The \u003ca href=\"\/products\/stage-2-kit-b58\"\u003eStage 2 Kit — B58\u003c\/a\u003e packages the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Thermal Heat Dispersion","offer_id":43280710565949,"sku":"CSF 8300","price":5065.0,"currency_code":"USD","in_stock":true},{"title":"Raw","offer_id":43280710598717,"sku":"CSF 8300","price":4865.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43280710631485,"sku":"CSF 8300","price":4865.0,"currency_code":"USD","in_stock":true},{"title":"White","offer_id":43280710664253,"sku":"CSF 8300","price":5065.0,"currency_code":"USD","in_stock":true},{"title":"Orange","offer_id":43280710697021,"sku":"CSF 8300","price":5065.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/CSF_charge_intake_b58g1.webp?v=1781742886"},{"product_id":"csf-cac-s55","title":"CSF Top-Mount Charge-Air-Cooler — S55 (F80 M3 \/ F82 M4 \/ F87 M2 Competition)","description":"\u003cp\u003e\u003cstrong\u003eCSF top-mount charge-air cooler for the S55 — F80 M3, F82\/F83 M4, F87 M2 Competition.\u003c\/strong\u003e This is the water-to-air charge cooler that sits atop the engine; CSF calls it the first cast-end-tank top-mount unit for the S55. It pairs with the front heat exchanger to control intake temps.\u003c\/p\u003e\n\u003ch3\u003eWhat CSF changes\u003c\/h3\u003e\n\u003cp\u003eA core about 60% larger than OEM with cast hot- and cold-side end tanks and internal air dividers, run as a dual-pass, cross-flow design with two-stage water cooling (the OEM unit is single-pass, vertical-flow). 3D-scanned for a drop-in fit, with OEM quick-connect water connections and sensor ports.\u003c\/p\u003e\n\u003ch3\u003eFinishes\u003c\/h3\u003e\n\u003cp\u003eDefault is the \u003cstrong\u003eThermal Heat Dispersion coating\u003c\/strong\u003e — an emissivity coating that helps the part shed heat. Also available Raw, or in Esse Werks colors — Black, White, or Orange. Choose above.\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\u003eThis is the charge-cooler-side core of an S55 Stage 2 build. The \u003ca href=\"\/products\/stage-2-kit-s55\"\u003eStage 2 Kit — S55\u003c\/a\u003e packages the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Thermal Heat Dispersion","offer_id":43280710729789,"sku":"CSF 8082","price":2295.0,"currency_code":"USD","in_stock":true},{"title":"Raw","offer_id":43280710762557,"sku":"CSF 8082R","price":2095.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43280710795325,"sku":"CSF 8082","price":2095.0,"currency_code":"USD","in_stock":true},{"title":"White","offer_id":43280710828093,"sku":"CSF 8082","price":2295.0,"currency_code":"USD","in_stock":true},{"title":"Orange","offer_id":43280710860861,"sku":"CSF 8082","price":2295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/csf-cac-s55.webp?v=1781742887"},{"product_id":"csf-cac-s58","title":"CSF \"Level-Up\" Charge-Air-Cooler Manifold — S58 (G8x M3\/M4, G87 M2, X3 M \/ X4 M)","description":"\u003cp\u003e\u003cstrong\u003eCSF \"Level-Up\" charge-air-cooler manifold for the S58 — G80 M3, G82 M4, G87 M2, and F97 X3 M \/ F98 X4 M.\u003c\/strong\u003e A billet intake manifold (CSF by PWR) with an integrated bar-and-plate water-to-air charge cooler that replaces the OEM plastic manifold and its failure-prone tube-and-fin core.\u003c\/p\u003e\n\u003ch3\u003eWhat CSF changes\u003c\/h3\u003e\n\u003cp\u003eThe PWR bar-and-plate core is pressure-tested to 120 psi (the OEM core is prone to failing past ~27 psi), and CSF measures about a 30°F drop in intake temps versus stock. CNC-billet tanks, a top-feed port-injection fuel rail (block-off caps included), per-runner nitrous\/methanol ports, and an included KIYLEX thermal-rejection manifold spacer. Made in the USA.\u003c\/p\u003e\n\u003ch3\u003eFinishes\u003c\/h3\u003e\n\u003cp\u003eDefault is the \u003cstrong\u003eThermal Heat Dispersion coating\u003c\/strong\u003e — an emissivity coating that helps the part shed heat. Also available Raw, or in Esse Werks colors — Black, White, or Orange. Choose above.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eS58 — G80 M3, G82 M4, G83 M4 (incl. Competition \/ xDrive), G87 M2, and F97 X3 M \/ F98 X4 M. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eThis is the charge-cooler-side core of an S58 Stage 2 build. The \u003ca href=\"\/products\/stage-2-kit-s58\"\u003eStage 2 Kit — S58\u003c\/a\u003e packages the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Thermal Heat Dispersion","offer_id":43280712794173,"sku":"CSF 8233","price":8695.0,"currency_code":"USD","in_stock":true},{"title":"Raw","offer_id":43280712826941,"sku":"CSF 8233","price":8495.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43280712859709,"sku":"CSF 8233","price":8495.0,"currency_code":"USD","in_stock":true},{"title":"White","offer_id":43280712892477,"sku":"CSF 8233","price":8695.0,"currency_code":"USD","in_stock":true},{"title":"Orange","offer_id":43280712925245,"sku":"CSF 8233","price":8695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/csf_s58-level-up-charge-intake.webp?v=1781742886"},{"product_id":"csf-cac-s63-f9x","title":"CSF Twin Charge-Air-Cooler Set — S63 (F90 M5 \/ F92 M8)","description":"\u003cp\u003e\u003cstrong\u003eCSF twin charge-air-cooler set for the S63 — F90 M5 and F92\/F93 M8.\u003c\/strong\u003e A matched pair of water-to-air charge coolers (one per turbo) for the twin-turbo S63 V8, with the charge pipe integrated into a single-piece design.\u003c\/p\u003e\n\u003ch3\u003eWhat CSF changes\u003c\/h3\u003e\n\u003cp\u003eEach core is about 100% larger than the factory cooler, CFD-developed to fill the OEM location with millimeters to spare — true plug-and-play. CSF developed this set on some of the fastest S63 cars running, including 1,000+ hp builds.\u003c\/p\u003e\n\u003ch3\u003eFinishes\u003c\/h3\u003e\n\u003cp\u003eDefault is the \u003cstrong\u003eThermal Heat Dispersion coating\u003c\/strong\u003e — an emissivity coating that helps the cores shed heat. Also available in Esse Werks colors — Black, White, or Orange. Choose above.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eS63 — F90 M5 (incl. Competition), F91\/F92 M8, F93 M8 Gran Coupe. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eThis is the charge-cooler-side core of an S63 Stage 2 build. The \u003ca href=\"\/products\/stage-2-kit-s63\"\u003eStage 2 Kit — S63\u003c\/a\u003e packages the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Thermal Heat Dispersion","offer_id":43280712958013,"sku":"CSF 8178","price":3655.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43280712990781,"sku":"CSF 8178","price":3455.0,"currency_code":"USD","in_stock":true},{"title":"White","offer_id":43280713023549,"sku":"CSF 8178","price":3655.0,"currency_code":"USD","in_stock":true},{"title":"Orange","offer_id":43280713056317,"sku":"CSF 8178","price":3655.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/csf-cac-s63-f9x.webp?v=1781742887"},{"product_id":"csf-cac-s63-x5mx6m","title":"CSF Charge-Air-Cooler Set — X5 M \/ X6 M \/ XM (S63 \/ S68)","description":"\u003cp\u003e\u003cstrong\u003eCSF charge-air-cooler set for the X5 M, X6 M, and XM — S63 and S68.\u003c\/strong\u003e A matched pair of water-to-air charge coolers for the twin-turbo V8 in the heavy M SUVs, derived from CSF's proven F90 M5 \/ M8 set.\u003c\/p\u003e\n\u003ch3\u003eWhat CSF changes\u003c\/h3\u003e\n\u003cp\u003eEach core is nearly 100% larger than the factory unit, CFD-designed for both fit and flow, with a plug-and-play mounting solution co-developed with Carbahn. The platform has hundreds of kits in service, many on 1,000+ hp builds.\u003c\/p\u003e\n\u003ch3\u003eFinishes\u003c\/h3\u003e\n\u003cp\u003eDefault is the \u003cstrong\u003eThermal Heat Dispersion coating\u003c\/strong\u003e — an emissivity coating that helps the cores shed heat. Also available in Esse Werks colors — Black, White, or Orange. Choose above.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eF95 X5 M, F96 X6 M (S63), and G09 XM (S68). Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eThis is the charge-cooler-side core of an S63 Stage 2 build. The \u003ca href=\"\/products\/stage-2-kit-s63\"\u003eStage 2 Kit — S63\u003c\/a\u003e packages the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Thermal Heat Dispersion","offer_id":43280713089085,"sku":"CSF 8315","price":3655.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43280713121853,"sku":"CSF 8315","price":3455.0,"currency_code":"USD","in_stock":true},{"title":"White","offer_id":43280713154621,"sku":"CSF 8315","price":3655.0,"currency_code":"USD","in_stock":true},{"title":"Orange","offer_id":43280713187389,"sku":"CSF 8315","price":3655.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/csf-cac-s63-x5mx6m.webp?v=1781742887"},{"product_id":"csf-hx-s55","title":"CSF Front-Mount Heat Exchanger — S55 (F80 M3 \/ F82 M4 \/ F87 M2 Competition)","description":"\u003cp\u003e\u003cstrong\u003eCSF front-mount heat exchanger for the S55 — F80 M3, F82\/F83 M4, and F87 M2 Competition.\u003c\/strong\u003e The S55 runs an air-to-water charge-cooling system, and heat rejection at the front exchanger is the bigger of its two weak points. The factory unit gives up once boost and ambient climb, letting intake temps creep across back-to-back pulls.\u003c\/p\u003e\n\u003ch3\u003eWhat CSF changes\u003c\/h3\u003e\n\u003cp\u003eA 2-row, 42mm dual core with B-Tube geometry run as a dual-pass design — the coolant crosses the core twice before it leaves. CNC quick-connect fittings, a removable aluminum rock guard, and an aluminum drain plug. Drop-in fit in the factory location.\u003c\/p\u003e\n\u003ch3\u003eFinishes\u003c\/h3\u003e\n\u003cp\u003eWe spec these with a \u003cstrong\u003eThermal Heat Dispersion coating by default\u003c\/strong\u003e — an emissivity coating that helps the core radiate heat away, which is exactly what you want on a cooler. Prefer to skip it? Raw or Black are available for less. Choose above.\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\u003eThis is the heat-exchanger-side core of an S55 Stage 2 build. The \u003ca href=\"\/products\/stage-2-kit-s55\"\u003eStage 2 Kit — S55\u003c\/a\u003e packages the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Thermal Heat Dispersion","offer_id":43280714793021,"sku":"CSF 8075","price":1105.0,"currency_code":"USD","in_stock":true},{"title":"Raw","offer_id":43280714825789,"sku":"CSF 8075","price":905.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43280714858557,"sku":"CSF 8075V","price":905.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/csf-hx-s55.webp?v=1781742886"},{"product_id":"csf-hx-s58","title":"CSF Front-Mount Heat Exchanger — S58 (G80 M3 \/ G82 M4 \/ G87 M2)","description":"\u003cp\u003e\u003cstrong\u003eCSF front-mount heat exchanger for the S58 — the heat-rejection side of the charge-air cooling system in the G8x M3\/M4 and G87 M2.\u003c\/strong\u003e The S58 cools its intake charge through a coolant loop; this front radiator is what removes that heat. The factory exchanger is a single-row, 35mm core with plastic tanks — fine stock, the limiter once the car is making more and seeing repeat pulls or track time.\u003c\/p\u003e\n\u003ch3\u003eWhat CSF changes\u003c\/h3\u003e\n\u003cp\u003eA 2-row, 42mm all-aluminum core with B-Tube geometry and TIG-welded aluminum tanks in place of the OEM plastic\/crimp construction. Ships with upper and lower rock guards and a transmission-cooler mounting kit, and drops into the factory location. CSF developed it over 100+ track hours.\u003c\/p\u003e\n\u003ch3\u003eFinishes\u003c\/h3\u003e\n\u003cp\u003eWe spec these with a \u003cstrong\u003eThermal Heat Dispersion coating by default\u003c\/strong\u003e — an emissivity coating that helps the core radiate heat away, which is exactly what you want on a cooler. Prefer to skip it? Raw or Black are available for less. Choose above.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eS58 — G80\/G81 M3 (incl. Competition, CS), G82\/G83 M4 (incl. Competition, CSL), and G87 M2 \/ M2 CS. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eThis is the heat-exchanger-side core of an S58 Stage 2 build. The \u003ca href=\"\/products\/stage-2-kit-s58\"\u003eStage 2 Kit — S58\u003c\/a\u003e packages the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Thermal Heat Dispersion","offer_id":43280714891325,"sku":"CSF 8215","price":1105.0,"currency_code":"USD","in_stock":true},{"title":"Raw","offer_id":43280714924093,"sku":"CSF 8215","price":905.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43280714956861,"sku":"CSF 8215","price":905.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/csf-hx-s58.webp?v=1781742886"},{"product_id":"csf-hx-b58-b48-fchassis","title":"CSF Triple-Pass Heat Exchanger — B58 \/ B48 (F2x \/ F3x BMW)","description":"\u003cp\u003e\u003cstrong\u003eCSF Triple-Pass heat exchanger for F2x\/F3x B58 and B48 — the radiator side of the charge-cooling loop.\u003c\/strong\u003e On these F-chassis cars the intake charge is cooled by a coolant circuit; this front exchanger cools the coolant that feeds the manifold's charge cooler. The factory unit is a single-row, ~27mm single-pass core that saturates under sustained load.\u003c\/p\u003e\n\u003ch3\u003eWhat CSF changes\u003c\/h3\u003e\n\u003cp\u003eA 68mm 2-row core — CSF calls it the largest 2-row they build — run as a triple-pass design, so the coolant crosses the core three times before returning to the manifold (the OEM unit and most aftermarket designs are single-pass). All-aluminum with B-Tube geometry, a detachable rock guard, and CNC quick-connect fittings. Installs with no modifications.\u003c\/p\u003e\n\u003ch3\u003eFinishes\u003c\/h3\u003e\n\u003cp\u003eWe spec these with a \u003cstrong\u003eThermal Heat Dispersion coating by default\u003c\/strong\u003e — an emissivity coating that helps the core radiate heat away, which is exactly what you want on a cooler. Prefer to skip it? Raw or Black are available for less. Choose above.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW F2x\/F3x — 230i (B48), 330i \/ 330e (B48), 340i (B58), 430i (B48), 440i (B58), and M240i (B58), 2016–2021. BMW applications only. Confirm your chassis in the selector.\u003c\/p\u003e\n\u003cp\u003eThis is the heat-exchanger-side core of a B58\/B48 Stage 2 build. The \u003ca href=\"\/products\/stage-2-kit-b58\"\u003eStage 2 Kit — B58\u003c\/a\u003e packages the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Thermal Heat Dispersion","offer_id":43280714989629,"sku":"CSF 8131","price":985.0,"currency_code":"USD","in_stock":true},{"title":"Raw","offer_id":43280715022397,"sku":"CSF 8131","price":785.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43280715055165,"sku":"CSF 8131B","price":785.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/CSF-f3x-f2x-b58-b48-triple-pass.jpg?v=1781742887"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/collections\/csf_brand.svg?v=1781758308","url":"https:\/\/essewerks.com\/collections\/csf.oembed","provider":"Esse Werks","version":"1.0","type":"link"}