{"product_id":"evolution-racewerks-competition-series-catless-secondary-downpipes-bmw-m5-g90-s68","title":"Evolution Racewerks Competition Series Catless Secondary Downpipes – BMW M5 (G90, S68)","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\u003eEvolution Racewerks Competition Series Catless Secondary Downpipes for the S68 twin-turbo V8 in the 2025+ BMW M5 (G90). The S68 uses two primary and two secondary catalytic converters; this kit replaces just the secondary sections and deletes the secondary catalytic converters, and works with the factory or aftermarket primary downpipes. Pair it with the matching primary downpipes or order the complete set.\u003c\/p\u003e\n\u003cp\u003eBuilt in-house in the USA from 100% 304 stainless steel with mandrel-bent 3\" tubing and 100% TIG welds, with laser-cut brackets TIG welded with stainless rod. The factory slip-on style connection is retained, so installation is 100% bolt-on with no compatibility issues with the factory exhaust or an aftermarket system.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCatless design for maximum exhaust flow\u003c\/li\u003e\n\u003cli\u003eSecondary downpipe sections only; compatible with factory or aftermarket primary downpipes\u003c\/li\u003e\n\u003cli\u003eMandrel-bent 3\" piping with a smooth transition into the exhaust\u003c\/li\u003e\n\u003cli\u003e100% 304 grade stainless steel construction\u003c\/li\u003e\n\u003cli\u003e100% TIG welded, manufactured in-house in the USA\u003c\/li\u003e\n\u003cli\u003eLaser-cut stainless brackets TIG welded with stainless rod\u003c\/li\u003e\n\u003cli\u003eRetains the factory slip-on style connection; 100% bolt-on\u003c\/li\u003e\n\u003cli\u003eFinish options: Brush (default), Mirror Polish, or high-temperature Black Ceramic Thermal Coating\u003c\/li\u003e\n\u003cli\u003eCeramic Thermal Coating lowers underhood temperatures and keeps exhaust gas velocity up (black only)\u003c\/li\u003e\n\u003cli\u003eHigher peak horsepower curve and earlier, stronger torque curve\u003c\/li\u003e\n\u003cli\u003eSharper throttle response and faster turbo spool\u003c\/li\u003e\n\u003cli\u003eCompatible with factory or aftermarket exhaust systems\u003c\/li\u003e\n\u003cli\u003eTrack tested durability\u003c\/li\u003e\n\u003cli\u003eShipping weight: approx. 10 lb\u003c\/li\u003e\n\u003cli\u003eLimited Lifetime Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCompetition Series catless secondary downpipes in the selected finish\u003c\/li\u003e\n\u003cli\u003eAll hardware required for complete installation\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\u003eECU tune (required):\u003c\/strong\u003e removing or replacing the factory catalytic converters will set catalyst efficiency fault codes without software: \u003ca href=\"\/products\/s68-jb4-tuner-for-2025-g90-g99-bmw-m5\"\u003eBurger Motorsports JB4 Tuner – BMW M5 (G90\/G99, S68)\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eRetains your factory or aftermarket primary downpipes. For a complete catless system add the \u003ca href=\"\/products\/evolution-racewerks-competition-series-catless-primary-downpipe-bmw-m5-g90-s68\"\u003eEvolution Racewerks Competition Series Catless Primary Downpipe\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eNo additional hardware is needed; all installation hardware is supplied by Evolution Racewerks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEvolution Racewerks does not publish an installation guide or video for this part.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/contact-us\"\u003eContact Speed Logic\u003c\/a\u003e for installation support or fitment questions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFor OFF-ROAD \/ RACE USE ONLY and not emissions legal for street use. Not for sale, installation or use on licensed vehicles in California.\u003c\/li\u003e\n\u003cli\u003eAlso available for these cars: \u003ca href=\"\/products\/evolution-racewerks-competition-series-catless-downpipes-bmw-m5-g90-s68\"\u003eEvolution Racewerks Competition Series Catless Downpipes\u003c\/a\u003e, \u003ca href=\"\/products\/evolution-racewerks-competition-series-catless-primary-downpipe-bmw-m5-g90-s68\"\u003eEvolution Racewerks Competition Series Catless Primary Downpipe\u003c\/a\u003e, \u003ca href=\"\/products\/evolution-racewerks-sports-series-high-flow-catted-downpipes-bmw-m5-g90-s68\"\u003eEvolution Racewerks Sports Series High Flow Catted Downpipes\u003c\/a\u003e, \u003ca href=\"\/products\/evolution-racewerks-sports-series-high-flow-catted-primary-downpipe-bmw-m5-g90-s68\"\u003eEvolution Racewerks Sports Series High Flow Catted Primary Downpipe\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBM-EXH038S-SECO\u003c\/strong\u003e — Brush Finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBM-EXH038P-SECO\u003c\/strong\u003e — Polish Finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBM-EXH038TB-SECO\u003c\/strong\u003e — Ceramic Thermal Coating\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\u003eM5\u003c\/td\u003e\n\u003ctd\u003eG90\u003c\/td\u003e\n\u003ctd\u003eS68 4.4L Twin-Turbo V8\u003c\/td\u003e\n\u003ctd\u003e2025+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Evolution Racewerks","offers":[{"title":"Brush Finish","offer_id":52920895406360,"sku":"BM-EXH038S-SECO","price":795.0,"currency_code":"USD","in_stock":true},{"title":"Polish Finish","offer_id":52920895439128,"sku":"BM-EXH038P-SECO","price":895.0,"currency_code":"USD","in_stock":true},{"title":"Ceramic Thermal Coating","offer_id":52920895471896,"sku":"BM-EXH038TB-SECO","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/g90m5seco2_f893f201-e972-4ed5-b02a-70eab628826e.jpg?v=1792181757","url":"https:\/\/speedlogicauto.com\/products\/evolution-racewerks-competition-series-catless-secondary-downpipes-bmw-m5-g90-s68","provider":"SPEED LOGIC","version":"1.0","type":"link"}