{"product_id":"valvetronic-designs-hfd-valved-sport-exhaust-bmw-m3-m4-g8x-s58","title":"Valvetronic Designs HFD Valved Sport Exhaust – BMW M3 \/ M4 (G8X) S58","description":"\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eThe Valvetronic Designs HFD (High-Frequency Development) Valved Sport Exhaust for the S58 M3 and M4 uses a resonated mid-pipe that tunes pulse timing for a smoother, more exotic inline-six tone and removes rasp while keeping high-frequency character — the resonated alternative to the equal-length design. Choose your tip finish; a mid-pipe-only option is also available.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eValved cat-back exhaust — the valves integrate with the factory drive modes (or manual control)\u003c\/li\u003e\n\u003cli\u003eT304 stainless steel construction (Grade 5 Titanium available on most applications)\u003c\/li\u003e\n\u003cli\u003eMandrel-bent, TIG-welded; 100% reversible to stock\u003c\/li\u003e\n\u003cli\u003eHFD resonated mid-pipe — smoother, exotic tone with rasp removed\u003c\/li\u003e\n\u003cli\u003eElectronically valved axle-back\u003c\/li\u003e\n\u003cli\u003eFull-system and HFD mid-pipe-only configurations\u003c\/li\u003e\n\u003cli\u003eT304 stainless\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eValved exhaust system with selected tips\u003c\/li\u003e\n\u003cli\u003eValve extension harness \/ controller\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNo additional hardware required for the full system (bolt-on)\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=oS-CmuztqIs\" target=\"_blank\" rel=\"noopener\"\u003eExhaust demo \/ sound (YouTube)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHFD mid-pipe only — BMW.G8X.M3.HFD.MP.BR\u003c\/li\u003e\n\u003cli\u003eFull system — BMW.G8X.M3.VSES.HFD.BR.[finish]\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable\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 \/ M3 Competition xDrive\u003c\/td\u003e\n\u003ctd\u003eG80\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4 \/ M4 Competition xDrive\u003c\/td\u003e\n\u003ctd\u003eG82\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L\u003c\/td\u003e\n\u003ctd\u003e2021+\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\u003eG83\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L\u003c\/td\u003e\n\u003ctd\u003e2022+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Valvetronic Designs","offers":[{"title":"HFD Midpipe Only \/ Brushed T304 Stainless Steel \/ No Exhaust Tips (Midpipe Only)","offer_id":53844225950003,"sku":"BMW.G8X.M3.HFD.MP.BR","price":1499.99,"currency_code":"USD","in_stock":true},{"title":"Full System (Catback) \/ Brushed T304 Stainless Steel \/ (4) 1x1 Carbon Fiber (4.0 Outlet)","offer_id":53844225982771,"sku":"BMW.G8X.M3.VSES.HFD.BR.RC","price":2999.99,"currency_code":"USD","in_stock":true},{"title":"Full System (Catback) \/ Brushed T304 Stainless Steel \/ (4) Brushed Steel (3.5 Outlet)","offer_id":53844226015539,"sku":"BMW.G8X.M3.VSES.HFD.BR.BRSH","price":2999.99,"currency_code":"USD","in_stock":true},{"title":"Full System (Catback) \/ Brushed T304 Stainless Steel \/ (4) Burnt (3.5 Outlet)","offer_id":53844226048307,"sku":"BMW.G8X.M3.VSES.HFD.BR.BRT","price":2999.99,"currency_code":"USD","in_stock":true},{"title":"Full System (Catback) \/ Brushed T304 Stainless Steel \/ (4) Black (3.5 Outlet)","offer_id":53844226081075,"sku":"BMW.G8X.M3.VSES.HFD.BR.BLK","price":2999.99,"currency_code":"USD","in_stock":true},{"title":"Full System (Catback) \/ Brushed T304 Stainless Steel \/ (4) Forged Carbon Fiber (3.5 Outlet)","offer_id":53844226113843,"sku":"BMW.G8X.M3.VSES.HFD.BR.FC","price":2999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/4226\/2579\/files\/DSC08384_ShopifyCustomSize.png?v=1786405169","url":"https:\/\/x58cartel.com\/products\/valvetronic-designs-hfd-valved-sport-exhaust-bmw-m3-m4-g8x-s58","provider":"x58cartel","version":"1.0","type":"link"}