{"title":"F82 Chassis","description":null,"products":[{"product_id":"er-comp-catless-dp-s55","title":"ER Competition Series Catless Downpipes — S55","description":"\u003cp\u003e\u003cstrong\u003eEvolution Racewerks Competition Series twin downpipes for the S55 — F80 M3, F82 M4, F83 M4 Convertible, F87 M2 Competition.\u003c\/strong\u003e Twin 3.5\" mandrel-bent T304 stainless pipes — one per turbo. The largest downpipe section in ER's catalog for a reason: the S55 makes meaningful exhaust flow that the OEM downpipes deliberately restrict for noise compliance.\u003c\/p\u003e\n\n\u003ch3\u003eThe S55 and downpipes\u003c\/h3\u003e\n\u003cp\u003eThe OEM S55 downpipes are restrictive enough that even un-tuned M3\/M4 owners commonly report a meaningful difference from a downpipe alone. On Stage 2 and Stage 3 builds, OEM downpipes become the single biggest exhaust restriction — replacing them is standard for any serious F8X tune.\u003c\/p\u003e\n\n\u003ch3\u003eFor the F87 M2 Competition specifically\u003c\/h3\u003e\n\u003cp\u003eSame engine as the M3\/M4 but in a smaller chassis with slightly different exhaust routing. These downpipes drop post-turbo back-pressure to the level the S55's wastegate strategy expects, sharpening throttle response across the rev range.\u003c\/p\u003e\n\n\u003ch3\u003eCatless vs Catted\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCatless:\u003c\/strong\u003e race-only, twin 3.5\" pipes, no cat material. CEL on stock cal — Esse Werks Stage 2\/3 calibrations clear it. Standard choice for track-driven F8X builds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Flow Catted:\u003c\/strong\u003e 200-cell metallic cats in both pipes. CEL-clean on stock cal. Community-observed flow sits close to the catless pipes for street and most track use.\u003c\/p\u003e\n\n\u003ch3\u003eWhat Evolution Racewerks builds in\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e100% 304-grade stainless steel construction\u003c\/li\u003e\n  \u003cli\u003eMandrel-bent piping — smooth transitions, no flow restrictions at the bends\u003c\/li\u003e\n  \u003cli\u003e100% TIG-welded by ER's in-house fabricators\u003c\/li\u003e\n  \u003cli\u003ePrecision CNC-machined flanges (billet 304 stainless)\u003c\/li\u003e\n  \u003cli\u003eMade in the USA — manufactured in-house at ER's California facility\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLimited Lifetime Warranty\u003c\/strong\u003e against manufacturing defects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEGT bung included — standard on every Esse Werks ER order\u003c\/h3\u003e\n\u003cp\u003eEvolution Racewerks offers the EGT (Exhaust Gas Temperature) sensor bung as an optional add-on on their direct catalog. \u003cstrong\u003eWe include it on every ER downpipe \/ mid pipe we ship — no upcharge.\u003c\/strong\u003e Comes pre-installed with a 1\/8\" NPT plug so you don't need to run the EGT sensor immediately. When you're ready to add EGT monitoring to your build (recommended at Stage 2 and above for any sustained-load driving), the bung is already there.\u003c\/p\u003e\n\n\u003ch3\u003eSwainTech White Lightning — our signature coating\u003c\/h3\u003e\n\u003cp\u003eWhen we coat a part, we use one coating: SwainTech White Lightning — a true ceramic thermal barrier applied about 0.015\" thick (versus roughly 0.002\" for paint-style \"ceramic\" finishes) and sprayed molten so it bonds to the metal instead of sitting on top. It cuts radiant heat off the exhaust by roughly 35–55%, dropping underhood and intake temperatures, and keeps heat inside the pipe where it sustains exhaust velocity and scavenging. And it's white — a deliberate signature in a market that otherwise all looks the same in black. Select it above.\u003c\/p\u003e\n\n\u003ch3\u003eCalifornia restriction\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThis product is not for sale, installation, or use on licensed vehicles in the State of California.\u003c\/strong\u003e 49-state product. Vehicle Compliance Waiver signed at order intake. International orders ship without restriction.\u003c\/p\u003e\n\n\u003ch3\u003eInstall\u003c\/h3\u003e\n\u003cp\u003e~3-4 hours at a competent shop. Reuses OEM hardware where applicable. Includes all hardware for complete installation.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eS55 twin-turbo applications — F80 M3, F82 M4, F83 M4 Convertible, F87 M2 Competition (2018-2021).\u003c\/p\u003e\n\u003cp\u003eThis part is the downpipe-side Core of every 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":"Evolution Racewerks","offers":[{"title":"Catless — Brush Finish","offer_id":43280681861181,"sku":"EW-EXH-ER-S55-CATLESS","price":1415.0,"currency_code":"USD","in_stock":true},{"title":"Catless — SwainTech White Lightning","offer_id":43280681893949,"sku":"EW-EXH-ER-S55-CATLESS-CER","price":1665.0,"currency_code":"USD","in_stock":true},{"title":"High-Flow Catted — Brush Finish","offer_id":43280681926717,"sku":"EW-EXH-ER-S55-CAT","price":1765.0,"currency_code":"USD","in_stock":true},{"title":"High-Flow Catted — SwainTech White Lightning","offer_id":43280681959485,"sku":"EW-EXH-ER-S55-CAT-CER","price":2015.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/ER__competition-series-catless-downpipes-2015-20-m2-competition-m3-m4-s55-engine_01.webp?v=1781743119"},{"product_id":"snow-performance-stage-3-methanol-kit","title":"Snow Performance Stage 3 DI Water\/Methanol Kit","description":"\u003cp\u003e\u003cstrong\u003eCharge cooling that lowers IAT under sustained boost.\u003c\/strong\u003e The Stage 3 DI kit injects a 49% methanol \/ 51% water mix (Snow's Boost Juice) into the charge tract. Effective IAT drop is 15–35°F depending on ambient and boost pressure. Detonation margin moves with it.\u003c\/p\u003e\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHD pump with steel-braided pressure line\u003c\/li\u003e\n\u003cli\u003eController with boost-referenced injection mapping (electronically dosed, not vacuum-line driven)\u003c\/li\u003e\n\u003cli\u003eReservoir, mounting hardware, harness\u003c\/li\u003e\n\u003cli\u003e1 gallon of Boost Juice to start the system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat it does for your tune\u003c\/h3\u003e\u003cp\u003eCharge cooling buys timing margin. On a calibrated B48 or B58 running aggressive timing in the cells where the engine is most knock-limited, meth allows 1–3° more advance at the same knock probability. That's not a flat power number — it's a track-day repeatability number.\u003c\/p\u003e\u003ch3\u003eNot magic\u003c\/h3\u003e\u003cp\u003eMeth is not a substitute for proper fueling, a correctly sized intercooler, or a calibration that respects your fuel system's actual capacity. It is an additional knock margin tool. We use it on Stage 2+ builds where the customer drives the car hot.\u003c\/p\u003e","brand":"Snow Performance","offers":[{"title":"Default Title","offer_id":43280686678077,"sku":"EW-ENG-METHKIT-S3","price":1205.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/snow_stg3_DI_EW_BLK01.png?v=1781742738"},{"product_id":"dorch-s55-hpfp-lift-kit","title":"Dorch Engineering S55 HPFP Lift Kit","description":"\u003cp\u003e\u003cstrong\u003eDorch Engineering Lift Kit for the S55 HPFP.\u003c\/strong\u003e The S55 has TWO high-pressure fuel pumps (one per turbo bank). This kit pushes more fuel flow out of the OEM HPFP architecture by installing a proprietary Dorch-designed cartridge inside each pump body. Preserves OEM packaging, OEM fuel lines, and OEM electrical — the upgrade lives entirely inside the cartridges.\u003c\/p\u003e\n\n\u003ch3\u003eWhy the S55 needs this\u003c\/h3\u003e\n\u003cp\u003eStage 2 S55 and especially Stage 3 (on E85) calibrations exceed what the OEM HPFP pair can sustain at sustained boost. The symptom is fuel pressure deviation under load, which the calibration handles by pulling timing — meaning you don't get the output the tune is designed for. The Lift Kit is the cleanest way there without going to a full pump replacement.\u003c\/p\u003e\n\n\u003ch3\u003eCore deposit required\u003c\/h3\u003e\n\u003cp\u003eThis is a core-exchange product. Your existing OEM HPFP cartridges ship to Dorch within 30 days of receiving the upgrade; you receive the core deposit refund once Dorch confirms intact returns. If you don't return the cores within 30 days, the core deposit is forfeited. We handle the core return paperwork on your behalf at order intake.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo Dorch-designed HPFP cartridges (one per turbo bank)\u003c\/li\u003e\n  \u003cli\u003eInstallation hardware\u003c\/li\u003e\n  \u003cli\u003eDetailed install documentation (Dorch's PDF — we'll email it at order)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstall\u003c\/h3\u003e\n\u003cp\u003e~3-4 hours at a competent shop. F8X M-car HPFP access requires partial intake manifold removal — more involved than the inline-six platforms. Re-prime fuel system after install before flashing the matched Stage 2+ calibration.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003e2014-2020 BMW F80 M3, F82 M4, F83 M4 Convertible. 2018-2021 F87 M2 Competition (S55 engine, post-2018). For the pre-Competition F87 M2 (2016-2018, N55 engine), see the Dorch N55 HPFP Upgrade.\u003c\/p\u003e\n\u003cp\u003eIf you're sourcing fueling alongside the calibration, the \u003ca href=\"\/products\/fueling-kit-s55\"\u003eFueling Kit — S55\u003c\/a\u003e bundles the matched pump + tune for 8% under à la carte.\u003c\/p\u003e","brand":"Dorch Engineering","offers":[{"title":"Default Title","offer_id":43280695394365,"sku":"EW-FUEL-DORCH-S55-LIFT","price":1615.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/dorch_S55LK.webp?v=1781742887"},{"product_id":"tune-f82-m4","title":"BMW F82 M4 — Custom BM3 Tune (S55)","description":"\u003cp\u003e\u003cstrong\u003eLogged, verified, revised. Documented in writing. Yours to keep.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA custom bootmod3 calibration for the F82 (S55) — built from datalogs on your car, not a map off a shelf. We start from what your engine is actually doing in fuel trims, timing, knock, and load, and revise against the next log until the math and the data agree.\u003c\/p\u003e\n\u003ch3\u003eHow we approach it\u003c\/h3\u003e\n\u003cp\u003eMath first, datalogs second, marketing claims a distant last. We don’t publish dyno numbers we can’t reproduce; we tune to what your specific car does on the fuel you actually buy.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/configure\"\u003eConfigure your tune →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eThe matched Stage Kit for this engine — components + the calibration sold as one decision — is the \u003ca href=\"\/products\/stage-2-kit-s55\"\u003eStage 2 Kit — S55\u003c\/a\u003e. 8% under buying the parts and tune à la carte.\u003c\/p\u003e","brand":"Esse Werks","offers":[{"title":"Stage 1","offer_id":43280699064381,"sku":"EW-TUNE-F82-M4-S1","price":495.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":43280699097149,"sku":"EW-TUNE-F82-M4-S2","price":595.0,"currency_code":"USD","in_stock":true},{"title":"Stage 3","offer_id":43280699129917,"sku":"EW-TUNE-F82-M4-S3","price":895.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/tune-card-s55_2b4c9148-ac59-48bc-9f26-4b2d9635c4fc.png?v=1781742509"},{"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":"aa-downpipe-s55","title":"Active Autowerke Downpipes w\/ GESI Cats — S55","description":"\u003cp\u003e\u003cstrong\u003eActive Autowerke GESI-catted downpipes for the S55 — F80 M3, F82\/F83 M4, F87 M2 Competition.\u003c\/strong\u003e Clears the factory restriction on both turbos while keeping high-flow cats in the pipes.\u003c\/p\u003e\n\u003ch3\u003eConstruction\u003c\/h3\u003e\n\u003cp\u003eHand-built 304 stainless, TIG-welded, with a casted upper V-band for precise fitment and a pair of 4\" GESI G-Sport High Output (Gen 2) catalytic converters — rated for 500–850 hp, EPA-registered, 49-state \/ OBD2, no CEL. Not California-legal.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eDownpipe-side core of an S55 Stage 2 build; we tune around it. The \u003ca href=\"\/products\/stage-2-kit-s55\"\u003eStage 2 Kit — S55\u003c\/a\u003e bundles parts + calibration for 8% under à la carte.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW S55 — F80 M3, F82 M4, F83 M4 Convertible, F87 M2 Competition. Confirm your chassis in the selector.\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Catted (GESI)","offer_id":43280704241725,"sku":"11-080","price":3515.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/aa-downpipe-s55-gesi-01.webp?v=1781743119"},{"product_id":"aa-midpipe-s55-equal-length","title":"Active Autowerke Equal-Length Mid-Pipe — S55","description":"\u003cp\u003e\u003cstrong\u003eActive Autowerke equal-length mid-pipe for the S55 — F80 M3, F82\/F83 M4.\u003c\/strong\u003e The S55's factory down-pipe lengths differ between banks by nearly a foot and a half, spacing the exhaust pulses unevenly — the root of the rasp. This corrects it.\u003c\/p\u003e\n\u003ch3\u003eThe design\u003c\/h3\u003e\n\u003cp\u003eA patented equal-length design (US 11,248,511; EU\/UK 3,882,441) that matches both banks for a smooth, cohesive straight-six tone. This is the Gen 2 (it replaced the original, no longer made) with resonators that strip the rasp and cut the 2,000-rpm drone. 304 stainless, and it includes Active Autowerke's F-brace to restore tunnel rigidity once the factory mid-section is out.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eSits between the S55 downpipes and the rear exhaust. Off-road \/ race use only.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW S55 — F80 M3, F82 M4, F83 M4 Convertible. (F87 M2 Competition uses a separate mid-pipe.) Confirm your chassis in the selector.\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":43280709877821,"sku":"AA-MP-S55-EL","price":1915.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/Gemini_Generated_Image_swyrupswyrupswyr.png?v=1781742887"},{"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":"airtec-chargecooler-s55","title":"AIRTEC Billet Chargecooler Upgrade — S55","description":"\u003cp\u003e\u003cstrong\u003eAIRTEC billet chargecooler upgrade for the S55 — F80 M3, F82\/F83 M4, F87 M2 Competition.\u003c\/strong\u003e The S55 is air-to-water charge-cooled, and the OEM chargecooler heat-soaks on sustained boost. AIRTEC's larger-volume unit holds intake temps run after run.\u003c\/p\u003e\n\u003ch3\u003eConstruction\u003c\/h3\u003e\n\u003cp\u003e287mm × 190mm × 118mm — 6.43 litres against the OEM 2.85 litres (a 125% volume increase) with 45% more frontal area. High-flow one-piece cast end tanks with internal deflectors; connects to all OEM fittings (top-mount location retained). High-quality black powder-coat.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW S55 — F80 M3 and F82\/F83 M4 (direct fit); F87 M2 Competition (requires minor trimming of the underside of the bonnet for clearance). Confirm your chassis.\u003c\/p\u003e\n\u003cp\u003ePart no. ATINTBMW6. Pairs with the AIRTEC chargecooler radiator for the biggest gains. Chargecooler-side core of an S55 Stage 2 build — the \u003ca href=\"\/products\/stage-2-kit-s55\"\u003eStage 2 Kit — S55\u003c\/a\u003e bundles parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"AIRTEC Motorsport","offers":[{"title":"Default Title","offer_id":43280713580605,"sku":"ATINTBMW6","price":2755.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/airtec-billet-chargecooler-s55.webp?v=1781742886"},{"product_id":"airtec-chargecooler-radiator-s55","title":"AIRTEC Chargecooler Radiator Upgrade — S55","description":"\u003cp\u003e\u003cstrong\u003eAIRTEC chargecooler radiator (pre-rad) for the S55 — F80 M3, F82\/F83 M4, F87 M2 Competition.\u003c\/strong\u003e The front heat exchanger that feeds the S55's air-to-water charge-cooling loop. A bigger, cooler-running pre-rad keeps coolant temps down so the chargecooler can keep doing its job on long pulls.\u003c\/p\u003e\n\u003ch3\u003eConstruction\u003c\/h3\u003e\n\u003cp\u003eTwin-pass design, 540mm × 410mm × 45mm — 9.9 litres, more than double the OEM 4.5 litres, with roughly 40% more frontal area. Uses OEM mounts and coolant connectors; includes a removable stone guard and full fitting kit. Black powder-coat.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW S55 — F80 M3, F82\/F83 M4, F87 M2 Competition. Confirm your chassis.\u003c\/p\u003e\n\u003cp\u003ePart no. ATRADBMW1. Pairs with the AIRTEC billet chargecooler. 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 bundles parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"AIRTEC Motorsport","offers":[{"title":"Default Title","offer_id":43280713613373,"sku":"ATINT-S55-RAD","price":1695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/airtec-billet-chargecooler-s55-02.webp?v=1781742886"},{"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":"mishimoto-charge-pipe-s55","title":"Mishimoto Performance Charge Pipe Kit — S55","description":"\u003cp\u003e\u003cstrong\u003eMishimoto performance charge pipe kit for the S55 — F80 M3, F82\/F83 M4, F87 M2 Competition.\u003c\/strong\u003e Full-aluminum, TIG-welded replacement for the failure-prone OEM plastic charge pipe.\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eTwo TIG-welded aluminum charge pipes with a cast midsection for exact fitment, two matte-black silicone couplers, and clamps. Includes a bung for methanol injection. \u003cstrong\u003eCARB-exempt (EO# D-759-13) — 50-state street legal.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eInduction-side hardware on an S55 Stage 2 build — we tune to the supporting mods.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW S55 — F80 M3, F82\/F83 M4, F87 M2 Competition (2015–2020). Confirm your chassis.\u003c\/p\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cp\u003eMishimoto Lifetime Warranty. Part no. MMICP-F80-15.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/stage-2-kit-s55\"\u003eStage 2 Kit — S55\u003c\/a\u003e bundles parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Mishimoto","offers":[{"title":"Wrinkle Black","offer_id":43280716070973,"sku":"MMICP-F80-15","price":615.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/mishimoto-charge-pipe-s55.webp?v=1781742886"},{"product_id":"fuelit-pi-s55","title":"Fuel-It! Port Injection Kit (Elite) — S55 (F80 M3 \/ F82 M4 \/ F87 M2 Competition)","description":"\u003cp\u003e\u003cstrong\u003eFuel-It! Elite port injection kit for the S55 — F80 M3, F82\/F83 M4, F87 M2 Competition.\u003c\/strong\u003e A six-port supplemental low-pressure injection layout that backs up the S55's direct injection for big E85\/methanol power (Fuel-It rates it up to 1,000+ whp with the right injectors).\u003c\/p\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eFuel-It's Elite build — anodized billet manifold spacers with a return port, an upgraded fuel line, a billet rail, six manifold ports that run flow-matched injectors when you add them, an adapter, and a port-injection controller. \"Elite\" is the M-grade tier (the extra machining is what lets it fit the S55). It supplements, not replaces, the factory DI; injector size sets the ceiling.\u003c\/p\u003e\n\u003ch3\u003eOptions\u003c\/h3\u003e\n\u003cp\u003eTwo choices in the configurator. \u003cstrong\u003eInjector\u003c\/strong\u003e — choose \"No injectors\" to reuse your existing set or supply your own, or pick 550 \/ 750 \/ 950 \/ 1050cc; injector size sets the power ceiling, so size it to your fuel and target. \u003cstrong\u003eController\u003c\/strong\u003e — select Standard, or step up to the CANfuel Sequential, Fuel-It's CAN-bus sequential controller for finer fuel control. Make both selections above.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits in the build\u003c\/h3\u003e\n\u003cp\u003eSupplemental fuel for high-power S55 builds. 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":"Fuel-It!","offers":[{"title":"No injectors \/ Standard","offer_id":43280735043645,"sku":"FI-PI-S55","price":1305.0,"currency_code":"USD","in_stock":true},{"title":"No injectors \/ CANfuel Sequential","offer_id":43280735076413,"sku":"FI-PI-S55-SEQ","price":1804.0,"currency_code":"USD","in_stock":true},{"title":"550cc \/ Standard","offer_id":43280735109181,"sku":"FI-PI-S55-I550","price":1594.0,"currency_code":"USD","in_stock":true},{"title":"550cc \/ CANfuel Sequential","offer_id":43280735141949,"sku":"FI-PI-S55-I550-SEQ","price":2093.0,"currency_code":"USD","in_stock":true},{"title":"750cc \/ Standard","offer_id":43280735174717,"sku":"FI-PI-S55-I750","price":1694.0,"currency_code":"USD","in_stock":true},{"title":"750cc \/ CANfuel Sequential","offer_id":43280735207485,"sku":"FI-PI-S55-I750-SEQ","price":2193.0,"currency_code":"USD","in_stock":true},{"title":"950cc \/ Standard","offer_id":43280735240253,"sku":"FI-PI-S55-I950","price":1794.0,"currency_code":"USD","in_stock":true},{"title":"950cc \/ CANfuel Sequential","offer_id":43280735273021,"sku":"FI-PI-S55-I950-SEQ","price":2293.0,"currency_code":"USD","in_stock":true},{"title":"1050cc \/ Standard","offer_id":43280735305789,"sku":"FI-PI-S55-I1050","price":2204.0,"currency_code":"USD","in_stock":true},{"title":"1050cc \/ CANfuel Sequential","offer_id":43280735338557,"sku":"FI-PI-S55-I1050-SEQ","price":2703.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/fuelit_s55_port_injection_kit.webp?v=1781742887"}],"url":"https:\/\/essewerks.com\/collections\/chassis-f82.oembed","provider":"Esse Werks","version":"1.0","type":"link"}