{"title":"BMW M4 G82 Downpipes","description":null,"products":[{"product_id":"active-autowerke-bmw-s58-g80-m3-g82-m4-downpipe-gesi-catted","title":"Active Autowerke GESI Catted Downpipe – BMW M3 (G80) \/ M4 (G82) (S58)","description":"\u003cstyle\u003e.sl-desc h2{font-size:1.15em;letter-spacing:.06em;text-transform:uppercase;border-bottom:2px solid #111;padding-bottom:6px;margin:1.6em 0 .7em}.sl-desc h3{font-size:1em;margin:1.2em 0 .4em}.sl-desc ul{margin:0 0 1em 1.2em}.sl-desc li{margin:.25em 0}.va-table{width:100%;border-collapse:collapse;margin:.5em 0 1em;font-size:.95em}.va-table th{text-align:left;padding:10px 8px;border-bottom:2px solid #333;white-space:nowrap}.va-table td{padding:8px;border-bottom:1px solid #e5e5e5;vertical-align:top}.sl-note{font-size:.9em;color:#555;margin:.4em 0 1em}\u003c\/style\u003e\u003cdiv class=\"sl-desc\"\u003e\n\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eActive Autowerke Signature catted downpipes for the BMW G80 M3 and G82 M4 — cars praised for their performance but muffled from the factory, with a restrictive S58 downpipe that slows the evacuation of spent exhaust gases and turbo spool. The Signature downpipe uses 3\" stainless steel piping and stainless flex joints for more power, quicker spool and extreme durability, stepping down to 70mm to meet the OEM exhaust and never below that stock diameter. Its pair of 4.5\" ultra high flow GESI G-Sport catalytic converters use proprietary precious metal loading to cut emissions and back-pressure without setting a CEL, and join Active Autowerke's mid-pipe and valved rear axle-back exhaust to transform the sound of the car.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3.00\" diameter 304 stainless steel downpipe piping, stepping down to 70mm at the OEM exhaust connection (never smaller than the 70mm stock diameter)\u003c\/li\u003e\n\u003cli\u003eStainless steel flex joints\u003c\/li\u003e\n\u003cli\u003ePair of 4.5\" GESI G-Sport Ultra High Output catalytic converters\u003c\/li\u003e\n\u003cli\u003e400 cell per square inch ultra high flow catalyst\u003c\/li\u003e\n\u003cli\u003eFull 304 stainless steel catalytic converter construction including the substrate; substrate furnace-brazed to the mantle\u003c\/li\u003e\n\u003cli\u003eCast upper stainless steel V-band flange for precise fitment\u003c\/li\u003e\n\u003cli\u003eTIG welded 304 stainless steel construction\u003c\/li\u003e\n\u003cli\u003eCatalytic converters rated for 500 to 850 horsepower per cat\u003c\/li\u003e\n\u003cli\u003eWithstands up to 1500 °F\u003c\/li\u003e\n\u003cli\u003eReaches operational efficiency within 9 seconds of start-up\u003c\/li\u003e\n\u003cli\u003eNo check engine light when using these downpipes\u003c\/li\u003e\n\u003cli\u003eGESI converters are EPA registered and fully OBD2 compliant for 1996 and newer vehicles in 49 states (not California)\u003c\/li\u003e\n\u003cli\u003eBolts on with no cutting or welding required\u003c\/li\u003e\n\u003cli\u003e5 year \/ 50,000 mile warranty on the catalytic converters\u003c\/li\u003e\n\u003cli\u003eMade in Miami, Florida\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePair of Active Autowerke Signature catted downpipes with GESI G-Sport Ultra High Output catalytic converters\u003c\/li\u003e\n\u003cli\u003eComplete kit as supplied by Active Autowerke; see the installation instructions for the full bill of materials.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003ch3\u003eAdditional Parts Required\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNone.\u003c\/strong\u003e Active Autowerke specifies no additional hardware for this part — the downpipes bolt to the OEM turbo outlets and the OEM exhaust connection.\u003c\/li\u003e\n\u003cli\u003eOptional, to complete the Active Autowerke G80\/G82 exhaust system: \u003ca href=\"\/products\/active-autowerke-g80-g82-m3-m4-signature-mid-pipe-with-x-pipe\"\u003eSignature Mid-Pipe with X-Pipe\u003c\/a\u003e, \u003ca href=\"\/products\/active-autowerke-g80-g82-m3-m4-signature-single-mid-pipe\"\u003eSignature Single Mid-Pipe\u003c\/a\u003e and the \u003ca href=\"\/products\/active-autowerke-valved-rear-axle-back-exhaust-g80-m3-g82-m4\"\u003eValved Rear Axle-Back Exhaust\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/active-autowerke-catalytic-converter-break-in-instructions.pdf?v=1787172533\"\u003eActive Autowerke catalytic converter break-in instructions (PDF)\u003c\/a\u003e — follow this procedure on first start-up to avoid a check engine light being set in error.\u003c\/li\u003e\n\u003cli\u003eActive Autowerke does not publish a downpipe-specific installation PDF for this part number. Contact Speed Logic with fitment or installation questions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/li\u003e\n\u003cli\u003eNOTE: Federal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions are not adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e\u003cstrong\u003e11-085\u003c\/strong\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable class=\"va-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003ctd\u003eG80\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003eG82\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":42114063171750,"sku":"11-085","price":2849.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/products\/G80Cata_2048x_aed939fa-d76a-445d-bb88-36909aa176ee.jpg?v=1642709985"}],"url":"https:\/\/speedlogicauto.com\/collections\/bmw-m4-g82-downpipes.oembed","provider":"SPEED LOGIC","version":"1.0","type":"link"}