{"product_id":"bmw-g29-z4-m40i-valved-sport-exhaust-system","title":"BMW G29 Z4 M40i Valved Sport Exhaust System","description":"\u003ch3\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/poQpP-0yiCA?si=DYM20zMH6oK-QcHk\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/h3\u003e\n\u003ch1 data-end=\"196\" data-start=\"155\"\u003e\u003cstrong data-end=\"194\" data-start=\"157\"\u003eBMW Z4 M40i Valved Exhaust System\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3 data-end=\"249\" data-start=\"197\"\u003e3.5\" Midpipe, Dual 3\" Axle-Back, Vacuum Valves\u003c\/h3\u003e\n\u003chr data-end=\"254\" data-start=\"251\"\u003e\n\u003ch2 data-end=\"273\" data-start=\"256\"\u003e\u003cstrong data-end=\"271\" data-start=\"259\"\u003eOverview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"638\" data-start=\"274\"\u003eThe \u003cstrong data-end=\"323\" data-start=\"278\"\u003eValvetronic Designs Valved Exhaust System\u003c\/strong\u003e 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\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"2075\" data-start=\"1806\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/HM6apeJzueI?si=S6akkXaS_ire3OBy\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003chr data-end=\"643\" data-start=\"640\"\u003e\n\u003ch2 data-end=\"669\" data-start=\"645\"\u003e\u003cstrong data-end=\"667\" data-start=\"648\"\u003eSound \u0026amp; Control\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"956\" data-start=\"670\"\u003e\n\u003cli data-end=\"801\" data-start=\"670\"\u003e\n\u003cp data-end=\"801\" data-start=\"672\"\u003e\u003cstrong data-end=\"688\" data-start=\"672\"\u003eValves Open:\u003c\/strong\u003e A rich, aggressive tone with crisp throttle response, pronounced turbo spool, and motorsport-inspired overrun.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"956\" data-start=\"802\"\u003e\n\u003cp data-end=\"956\" data-start=\"804\"\u003e\u003cstrong data-end=\"822\" data-start=\"804\"\u003eValves Closed:\u003c\/strong\u003e A refined, stock-like sound perfect for long cruises or early-morning starts—ideal when you want performance without the attention.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"961\" data-start=\"958\"\u003e\n\u003ch2 data-end=\"995\" data-start=\"963\"\u003e\u003cstrong data-end=\"993\" data-start=\"966\"\u003ePerformance Engineering\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1400\" data-start=\"996\"\u003e\n\u003cli data-end=\"1157\" data-start=\"996\"\u003e\n\u003cp data-end=\"1157\" data-start=\"998\"\u003e\u003cstrong data-end=\"1022\" data-start=\"998\"\u003eMaximum Flow Design:\u003c\/strong\u003e Single \u003cstrong data-end=\"1049\" data-start=\"1030\"\u003e3.5\" midsection\u003c\/strong\u003e transitioning into \u003cstrong data-end=\"1098\" data-start=\"1069\"\u003edual 3\" mandrel-bent runs\u003c\/strong\u003e for optimal exhaust scavenging and reduced backpressure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1279\" data-start=\"1158\"\u003e\n\u003cp data-end=\"1279\" data-start=\"1160\"\u003e\u003cstrong data-end=\"1187\" data-start=\"1160\"\u003eBalanced Sound Profile:\u003c\/strong\u003e Tuned for a deep, full-bodied note inspired by our acclaimed B58 Supra and M340i systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1400\" data-start=\"1280\"\u003e\n\u003cp data-end=\"1400\" data-start=\"1282\"\u003e\u003cstrong data-end=\"1309\" data-start=\"1282\"\u003ePrecision Construction:\u003c\/strong\u003e TIG-welded \u003cstrong data-end=\"1345\" data-start=\"1321\"\u003eT304 stainless steel\u003c\/strong\u003e for exceptional durability and corrosion resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/h6xlGdmZRVY?si=AFFhwXlGb0dh3FFU\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003chr data-end=\"1405\" data-start=\"1402\"\u003e\n\u003ch2 data-end=\"1423\" data-start=\"1407\"\u003e\u003cstrong data-end=\"1421\" data-start=\"1410\"\u003eFitment\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1453\" data-start=\"1424\"\u003e\n\u003cli data-end=\"1453\" data-start=\"1424\"\u003e\n\u003cp data-end=\"1453\" data-start=\"1426\"\u003e\u003cstrong data-end=\"1451\" data-start=\"1426\"\u003e2017+ BMW G29 Z4 M40i\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1458\" data-start=\"1455\"\u003e\n\u003ch2 data-end=\"1477\" data-start=\"1460\"\u003e\u003cstrong data-end=\"1475\" data-start=\"1463\"\u003eFeatures\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1799\" data-start=\"1478\"\u003e\n\u003cli data-end=\"1517\" data-start=\"1478\"\u003e\n\u003cp data-end=\"1517\" data-start=\"1480\"\u003eFully mandrel-bent for maximum flow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1559\" data-start=\"1518\"\u003e\n\u003cp data-end=\"1559\" data-start=\"1520\"\u003ePrecision TIG welds for high strength\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1595\" data-start=\"1560\"\u003e\n\u003cp data-end=\"1595\" data-start=\"1562\"\u003eBuilt from T304 stainless steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1655\" data-start=\"1596\"\u003e\n\u003cp data-end=\"1655\" data-start=\"1598\"\u003eElectronic-actuated valves for rapid and reliable operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1701\" data-start=\"1656\"\u003e\n\u003cp data-end=\"1701\" data-start=\"1658\"\u003e11.1 lbs lighter than the factory exhaust\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1751\" data-start=\"1702\"\u003e\n\u003cp data-end=\"1751\" data-start=\"1704\"\u003eBeautiful tips to complement the Z4’s styling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1799\" data-start=\"1752\"\u003e\n\u003cp data-end=\"1799\" data-start=\"1754\"\u003e100% reversible—return to stock at any time\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1804\" data-start=\"1801\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"included-list\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Valvetronic Designs","offers":[{"title":"(4) Brushed Steel (3.5\" Outlet)","offer_id":51055568945446,"sku":"BMW.Z4.G29.VSES.BR.RC","price":2799.99,"currency_code":"USD","in_stock":false},{"title":"(4) Burnt (3.5\" Outlet)","offer_id":51055568978214,"sku":"BMW.Z4.G29.VSES.BR.RC","price":2799.99,"currency_code":"USD","in_stock":false},{"title":"(4) Black (3.5\" Outlet)","offer_id":51055569010982,"sku":"BMW.Z4.G29.VSES.BR.RC","price":2799.99,"currency_code":"USD","in_stock":false},{"title":"(4) Forged Carbon (3.5\" Outlet)","offer_id":51055569043750,"sku":"BMW.Z4.G29.VSES.BR.RC","price":2799.99,"currency_code":"USD","in_stock":false},{"title":"(4) 1x1 Carbon Fiber (3.5\" Outlet)","offer_id":51055569076518,"sku":"BMW.Z4.G29.VSES.BR.RC","price":2799.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/2131\/5878\/files\/A7402056_297439d7-bd4d-49bb-9930-def97c8caa43.jpg?v=1756923849","url":"https:\/\/store.ngpracing.com\/products\/bmw-g29-z4-m40i-valved-sport-exhaust-system","provider":"New German Performance","version":"1.0","type":"link"}