{"product_id":"dinan-axleback-axle-back-exhaust-for-bmw-f80-f82-f83-m3-m4-2015-2020-d660-0050","title":"Dinan Free Flow Axle-Back Exhaust w\/ Polished Tips for BMW F80\/F82\/F83 M3 M4 (2015-2020) - D660-0050","description":"\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Dinan 15-20 BMW M3\/M4 (F80\/F82\/F83) Free Flow Axleback Exhaust System - Polished Tips. Performance upgrade.\u003c\/p\u003e\u003cp\u003eDinan's Free Flow axle-back exhaust system features 100% stainless steel construction measured to exact specifications to ensure proper fit via factory hangers and mounting points. Dyno tuned for maximum exhaust flow with minimum backpressure, this system is designed to provide a more aggressive sound under acceleration, while reducing drone inside the vehicle, thanks to computer-controlled valves that limit noise during low-speed driving and open fully during high-load conditions to allow free flow. The exhaust gasses exit through larger laser engraved polished, or ceramic black, quad tips.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComputer controlled valve limits noise during low speed driving; valve opens fully during high-load conditions to allow free flow\u003c\/li\u003e\n\u003cli\u003eTwin secondary exhaust valves with a whopping 76mm diameter, making them 45% less restrictive than the OE valves.\u003c\/li\u003e\n\u003cli\u003eOperation of exhaust valve is unchanged so exhaust tone can be adjusted via the M-Drive settings.\u003c\/li\u003e\n\u003cli\u003eQuad 3.5\" black ceramic coated, or polished stainless, laser engraved exhaust tips\u003c\/li\u003e\n\u003cli\u003eUses the factory brackets and hangers for a factory-like fitment\u003c\/li\u003e\n\u003cli\u003eDrone abatement technologies used to reduce cabin resonance\u003c\/li\u003e\n\u003cli\u003eDinan exhaust is 3 lbs lighter than stock\u003c\/li\u003e\n\u003cli\u003eStock exhaust valve actuaters are reused\u003c\/li\u003e\n\u003cli\u003e100% 304 stainless steel construction\u003c\/li\u003e\n\u003cli\u003eEnjoyably louder, sporter sound\u003c\/li\u003e\n\u003cli\u003eMore Power: +5 HP\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\u003ctable\u003e\n\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\u003cth\u003eDrivetrain\u003c\/th\u003e\n\u003cth\u003eBody\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3, M4\u003c\/td\u003e\n\u003ctd\u003eF80, F82, F83\u003c\/td\u003e\n\u003ctd\u003e- (turbo)\u003c\/td\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Dinan   \u003cstrong\u003eMPN:\u003c\/strong\u003e D660-0050   \u003cstrong\u003eUPC:\u003c\/strong\u003e 813725020679\u003c\/p\u003e\u003cp\u003eFits turbo BMW engines in the listed models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEmissions (Dinan code 5): legal in all states; does not affect emissions.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Dinan","offers":[{"title":"Default Title","offer_id":67836497461463,"sku":"D660-0050","price":2113.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0852\/0355\/0423\/files\/21a594a488b137f632b2683caa8aefc0L.jpg?v=1792589402","url":"https:\/\/speedhausparts.com\/products\/dinan-axleback-axle-back-exhaust-for-bmw-f80-f82-f83-m3-m4-2015-2020-d660-0050","provider":"SPEEDhaus Parts","version":"1.0","type":"link"}