{"product_id":"active-autowerke-signature-exhaust-system-bmw-m3-m4-f80-f82-s55","title":"Active Autowerke Signature Exhaust System – BMW M3 \/ M4 (F80 \/ F82, S55)","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\u003eThe Active Autowerke Signature Exhaust System is a complete downpipe-back exhaust for the F80 M3 and F82 \/ F83 M4. It integrates the mid-pipe into a single 3.5-inch design, so no separate mid-pipe is required, and is built entirely from 304 stainless steel that is mandrel-bent and fully TIG-welded. The system reuses the factory exhaust valve motor for stock-style valve control and finishes at a set of adjustable 90mm double-walled tips.\u003c\/p\u003e\n\u003cp\u003eAn Active F-brace is included to stiffen the rear subframe area. Active Autowerke offers the tips in brushed silver, matte black, carbon, or carbon-over-black. The exhaust is built to order and intended for off-road \/ competition use.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eComplete downpipe-back exhaust system; integrates the mid-pipe (no separate mid-pipe required)\u003c\/li\u003e\n\u003cli\u003e100% 304 stainless steel, fully TIG-welded and mandrel-bent\u003c\/li\u003e\n\u003cli\u003e3.5\" single-pipe design\u003c\/li\u003e\n\u003cli\u003eReuses the factory exhaust valve motor (valved)\u003c\/li\u003e\n\u003cli\u003eAdjustable 90mm double-walled tips: brushed silver, matte black, carbon, or carbon-over-black\u003c\/li\u003e\n\u003cli\u003eIncludes Active F-brace\u003c\/li\u003e\n\u003cli\u003eNo permanent modifications required\u003c\/li\u003e\n\u003cli\u003eBuilt to order (Active Autowerke quotes up to 2–3 weeks before shipping)\u003c\/li\u003e\n\u003cli\u003eMade in Miami, FL, USA\u003c\/li\u003e\n\u003cli\u003eOff-road \/ competition use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSignature exhaust system (integrated mid and rear sections)\u003c\/li\u003e\n\u003cli\u003eActive F-brace\u003c\/li\u003e\n\u003cli\u003eChoice of 90mm double-walled tips\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 The system bolts to the OEM or an aftermarket S55 downpipe; no additional hardware is required.\u003c\/li\u003e\n\u003cli\u003eOptional: pair with \u003ca href=\"\/products\/active-autowerke-f8x-bmw-s55-m2c-m3-m4-downpipes-with-gesi-g-sport-cats\"\u003eActive Autowerke GESI G-Sport Catted Downpipes (F8X, S55)\u003c\/a\u003e for a complete turbo-back setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/active-autowerke-11-045-f8x-signature-exhaust-installation-instructions.pdf?v=1787600040\"\u003eActive Autowerke F8X M3 \/ M4 rear exhaust installation instructions (PDF)\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis system already includes a single mid-pipe and does NOT work with Active Autowerke's separate \u003ca href=\"\/products\/active-autowerke-mid-pipe-for-bmw-m3-m4-f80-f82\"\u003esingle mid pipe\u003c\/a\u003e or \u003ca href=\"\/products\/active-autowerke-equal-length-mid-pipe-for-bmw-m3-m4-f80-f82\"\u003eEqual Length mid pipe\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eTip finish is selected at the variant level.\u003c\/li\u003e\n\u003cli\u003eIntended for off-road \/ competition use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e11-045\u003c\/strong\u003e — Brushed Silver tips\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11-045B\u003c\/strong\u003e — Matte Black tips\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11-045C\u003c\/strong\u003e — Carbon tips\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11-045CB\u003c\/strong\u003e — Carbon over black tips\u003c\/li\u003e\n\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\u003eF80\u003c\/td\u003e\n\u003ctd\u003eS55 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2015–2018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003eF82\u003c\/td\u003e\n\u003ctd\u003eS55 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2015–2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4 Convertible\u003c\/td\u003e\n\u003ctd\u003eF83\u003c\/td\u003e\n\u003ctd\u003eS55 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2015–2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Active Autowerke","offers":[{"title":"Brushed Silver","offer_id":52563350159640,"sku":"11-045","price":3050.0,"currency_code":"USD","in_stock":true},{"title":"Matte Black","offer_id":52563367690520,"sku":"11-045B","price":3050.0,"currency_code":"USD","in_stock":true},{"title":"Carbon","offer_id":52563367723288,"sku":"11-045C","price":3450.0,"currency_code":"USD","in_stock":true},{"title":"Carbon over Black","offer_id":52563367756056,"sku":"11-045CB","price":3450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/10_4cc6ac3c-c18f-4833-9454-85d9933628dc.jpg?v=1787601431","url":"https:\/\/speedlogicauto.com\/products\/active-autowerke-signature-exhaust-system-bmw-m3-m4-f80-f82-s55","provider":"SPEED LOGIC","version":"1.0","type":"link"}