{"product_id":"valvetronic-designs-bmw-g29-z4-valved-sport-exhaust-system","title":"Valvetronic Designs BMW G29 Z4 M40i Valved Sport Exhaust System","description":"\u003cp\u003eBMW Z4 M40i Valved Exhaust System\u003c\/p\u003e\u003cp\u003e3.5\" Midpipe, Dual 3\" Axle-Back, Vacuum Valves\u003c\/p\u003e\u003cp\u003eOverview\u003c\/p\u003e\u003cp\u003eThe Valvetronic Designs Valved Exhaust System for the BMW G29 Z4 M40i is the ultimate upgrade for enthusiasts who demand both performance and versatility. Developed from our extensive R\u0026amp;D on B58-powered platforms—including the Supra and M340i—this system transforms the Z4’s sound and performance, unlocking the true potential of BMW’s celebrated inline-six.\u003c\/p\u003e\u003cp\u003eSound \u0026amp; Control\u003c\/p\u003e\u003cp\u003eValves Open: A rich, aggressive tone with crisp throttle response, pronounced turbo spool, and motorsport-inspired overrun.\u003c\/p\u003e\u003cp\u003eValves Closed: A refined, stock-like sound perfect for long cruises or early-morning starts—ideal when you want performance without the attention.\u003c\/p\u003e\u003cp\u003ePerformance Engineering\u003c\/p\u003e\u003cp\u003eMaximum Flow Design: Single 3.5\" midsection transitioning into dual 3\" mandrel-bent runs for optimal exhaust scavenging and reduced backpressure.\u003c\/p\u003e\u003cp\u003eBalanced Sound Profile: Tuned for a deep, full-bodied note inspired by our acclaimed B58 Supra and M340i systems.\u003c\/p\u003e\u003cp\u003ePrecision Construction: TIG-welded T304 stainless steel for exceptional durability and corrosion resistance.\u003c\/p\u003e\u003cp\u003eFitment\u003c\/p\u003e\u003cp\u003e2017+ BMW G29 Z4 M40i\u003c\/p\u003e\u003cp\u003eFeatures\u003c\/p\u003e\u003cp\u003eFully mandrel-bent for maximum flow\u003c\/p\u003e\u003cp\u003ePrecision TIG welds for high strength\u003c\/p\u003e\u003cp\u003eBuilt from T304 stainless steel\u003c\/p\u003e\u003cp\u003eElectronic-actuated valves for rapid and reliable operation\u003c\/p\u003e\u003cp\u003e11.1 lbs lighter than the factory exhaust\u003c\/p\u003e\u003cp\u003eBeautiful tips to complement the Z4’s styling\u003c\/p\u003e","brand":"Valvetronic Designs","offers":[{"title":"(4) Brushed Steel (3.5\" Outlet)","offer_id":55671402922303,"sku":"BMW.Z4.G29.VSES.BR.BRSH","price":3920.55,"currency_code":"CAD","in_stock":false},{"title":"(4) Burnt (3.5\" Outlet)","offer_id":55671402955071,"sku":"BMW.Z4.G29.VSES.BR.BRT","price":3920.55,"currency_code":"CAD","in_stock":false},{"title":"(4) Black (3.5\" Outlet)","offer_id":55671402987839,"sku":"BMW.Z4.G29.VSES.BR.BLK","price":3920.55,"currency_code":"CAD","in_stock":false},{"title":"(4) Forged Carbon (3.5\" Outlet)","offer_id":55671403020607,"sku":"BMW.Z4.G29.VSES.BR.FC","price":3920.55,"currency_code":"CAD","in_stock":false},{"title":"(4) 1x1 Carbon Fiber (3.5\" Outlet)","offer_id":55671403053375,"sku":"BMW.Z4.G29.VSES.BR.RC","price":3920.55,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0898\/1348\/3839\/files\/valvetronic-14629492130160-1.jpg?v=1789846765","url":"https:\/\/foreignautomotive.ca\/products\/valvetronic-designs-bmw-g29-z4-valved-sport-exhaust-system","provider":"Foreign Automotive","version":"1.0","type":"link"}