{"product_id":"bm-exh038tb-prim","title":"S68 Engine Catless Primary Only - Thermal Coated Black Finish (BM-EXH038TB-PRIM)","description":"\u003cdiv\u003e Restrictions in the exhaust system robs horsepower and torque especially on turbocharged cars. Thus, removing as much exhaust flow restrictions will increase horsepower and torque significantly. The factory catalytic converter found in the factory downpipe is a big culprit of this and is a major exhaust flow restriction. The factory catalytic converter is made up of catalyst material formed into \"honeycomb\" weaves. Exhaust gas must pass through these tiny \"honeycomb\" weaves on their way to the exhaust system thus causing a major exhaust flow restriction. It also causes turbulence after the catalytic converter which causes the exhaust flow to slow down (which increases restriction). By replacing the factory downpipe\/catalytic converter with our Competition Series Catless Downpipe, more power is unleashed! You will feel the difference instantly.Our Competition Series Catless Downpipes is constructed out of 100% 304 grade stainless steel and utilize mandrel bent piping. They are 100% TIG welded by our in house fabricators and built in the USA. The factory turbocharger turbine housing utilizes a 3.5\" V-Band flange which we have duplicated and CNC machined cut out of billet 304 stainless steel. Stainless Steel CNC machined O2 sensor and laser cut brackets are TIG welded using stainless steel rods. The O2 sensor is positioned at the factory location. The factory donut flange design is retained. 100% bolt on.Our downpipes are designed to fit perfectly with either the factory exhaust system or your aftermarket exhaust system. There are no compatibility issues whatsover. The downpipes will come by default with brushed finish.The 2025+ BMW M5 (G90) has 2 primary catalytic converters and 2 secondary catalytic converters for a total of 4 catalytic converters. Our Competition Series Catless Primary Downpipes replace just the primary section. You can retain the factory or aftermarket secondary downpipes.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures :\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003eHigher Max Horsepower Power Curve\u003c\/li\u003e\n\u003cli\u003eHigher Intial Torque Curve. Torque curve hits faster and higher and longer.\u003c\/li\u003e\n\u003cli\u003eBetter throttle response and faster turbo spool up times.\u003c\/li\u003e\n\u003cli\u003eMandrel Bent 3\" piping. Smooth transition to the exhaust system.\u003c\/li\u003e\n\u003cli\u003e100% Stainless Steel Construction\u003c\/li\u003e\n\u003cli\u003e100% TIG welded for better quality welds\u003c\/li\u003e\n\u003cli\u003ePrecision CNC machined turbocharger V-Band flange.\u003c\/li\u003e\n\u003cli\u003eMirror polish or brush finish\u003c\/li\u003e\n\u003cli\u003eAvailable with high temperature black thermal coating to reduce underhood temperatures.\u003c\/li\u003e\n\u003cli\u003eCompatible with the factory or aftermarket secondary downpipes.\u003c\/li\u003e\n\u003cli\u003eTrack tested durability.\u003c\/li\u003e\n\u003cli\u003eIncludes all hardware for complete installation.\u003c\/li\u003e\n\u003cli\u003eLimited Lifetime Warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFitments :\u003c\/strong\u003e\u003cul\u003e\u003cli\u003eBMW M5 G90 S28 Engine 2025+\u003c\/li\u003e\u003c\/ul\u003e \u003c\/div\u003e","brand":"Evolution Racewerks","offers":[{"title":"Default Title","offer_id":50232024334642,"sku":"BM-EXH038TB-PRIM","price":956.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0875\/7365\/9954\/files\/EvolutionRacewerks-BM-EXH038S-PRIM-main_59fd3d2e-0731-446f-b8a5-2f57885e3543.webp?v=1763169144","url":"https:\/\/peterscarparts.com\/products\/bm-exh038tb-prim","provider":"PETER'S CAR PARTS","version":"1.0","type":"link"}