{"product_id":"s58-3-5-race-downpipes-for-bmw-g8x-m2-m3-m4","title":"S58 3.5\" Race Downpipes - BMW G80 M3 \/ G82 M4 \/ G83 M4 \/ G87 M2","description":"\u003cp\u003eThe NRP S58 3.5\" Hydroformed Race Downpipes replace the factory downpipes on the G80 M3, G82\/G83 M4 and G87 M2. The stock pipes are 2.75\" and carry the catalytic converters right behind the turbos, which makes them the biggest restriction in the exhaust. Ours are a full 3.5\" from the turbo flange back — 36% more flow area than a 3\" downpipe and 62% more than stock — hydroformed from a single piece of 304 stainless with no welded bends. Less backpressure means the turbos spool faster and make more power: up to 27 hp and 33 tq at the wheels when tuned, more on upgraded turbos. The car sounds a lot better too — deeper, louder, with turbo spool you can hear.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFull 3.5\" from the turbo flange to the last couple of inches, then steps to the 2.75\" outlet flange — 36% more flow area than a 3\" downpipe, 62% more than stock\u003c\/li\u003e\n\u003cli\u003eCatless — no cats, less backpressure, faster spool\u003c\/li\u003e\n\u003cli\u003eHydroformed 304 stainless — one-piece bends, welds only at the flange, flex section and outlet\u003c\/li\u003e\n\u003cli\u003eCAD\/CAM cast stainless V-band at the turbo, 2-bolt flange at the outlet — bolts to the OEM midpipe or any aftermarket midpipe built for the stock downpipes\u003c\/li\u003e\n\u003cli\u003eStainless flex section to isolate the turbos from vibration and stress\u003c\/li\u003e\n\u003cli\u003eWorks with the factory heat shields and O2 sensor locations\u003c\/li\u003e\n\u003cli\u003eFits LHD and RHD with no modification\u003c\/li\u003e\n\u003cli\u003eUp to 27 HP and 33 TQ to the wheels when tuned — more with upgraded turbos\u003c\/li\u003e\n\u003cli\u003eNRP Lifetime Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOptions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrushed Stainless — bare 304 stainless\u003c\/li\u003e\n\u003cli\u003eHeat Shielded — reflective heat shield fitted over the downpipe to cut radiated heat in the engine bay\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2021+ G80 BMW M3 (including Competition, xDrive and CS)\u003c\/li\u003e\n\u003cli\u003e2021+ G82\/G83 BMW M4 (including Competition, xDrive, CS and CSL)\u003c\/li\u003e\n\u003cli\u003e2023+ G87 BMW M2 (including CS)\u003c\/li\u003e\n\u003cli\u003e2023+ G81 BMW M3 Touring (non-US)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDoes not fit the F97 X3M \/ F98 X4M.\u003cbr\u003eA tune is required — catless downpipes will trigger a check engine light on a stock DME, and the quoted gains assume one.\u003cbr\u003eProfessional installation recommended. For off-road and competition use only.\u003c\/p\u003e","brand":"NightRunners Performance","offers":[{"title":"Brushed Stainless","offer_id":67294162059635,"sku":null,"price":399.0,"currency_code":"USD","in_stock":true},{"title":"Heat Shielded","offer_id":67299563635059,"sku":null,"price":579.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.nightrunnersperformance.com\/products\/s58-3-5-race-downpipes-for-bmw-g8x-m2-m3-m4","provider":"NightRunners Performance","version":"1.0","type":"link"}