{"product_id":"bmw-g29-z4-valved-sport-exhaust-system","title":"BMW G29 Z4 M40i Valved Sport Exhaust System","description":"\u003ch3\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/poQpP-0yiCA?si=DYM20zMH6oK-QcHk\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/h3\u003e\n\u003ch1 data-start=\"155\" data-end=\"196\"\u003e\u003cstrong data-start=\"157\" data-end=\"194\"\u003eBMW Z4 M40i Valved Exhaust System\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3 data-start=\"197\" data-end=\"249\"\u003e3.5\" Midpipe, Dual 3\" Axle-Back, Vacuum Valves\u003c\/h3\u003e\n\u003chr data-start=\"251\" data-end=\"254\"\u003e\n\u003ch2 data-start=\"256\" data-end=\"273\"\u003e\u003cstrong data-start=\"259\" data-end=\"271\"\u003eOverview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"274\" data-end=\"638\"\u003eThe \u003cstrong data-start=\"278\" data-end=\"323\"\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-start=\"1806\" data-end=\"2075\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/HM6apeJzueI?si=S6akkXaS_ire3OBy\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003chr data-start=\"640\" data-end=\"643\"\u003e\n\u003ch2 data-start=\"645\" data-end=\"669\"\u003e\u003cstrong data-start=\"648\" data-end=\"667\"\u003eSound \u0026amp; Control\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"670\" data-end=\"956\"\u003e\n\u003cli data-start=\"670\" data-end=\"801\"\u003e\n\u003cp data-start=\"672\" data-end=\"801\"\u003e\u003cstrong data-start=\"672\" data-end=\"688\"\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-start=\"802\" data-end=\"956\"\u003e\n\u003cp data-start=\"804\" data-end=\"956\"\u003e\u003cstrong data-start=\"804\" data-end=\"822\"\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-start=\"958\" data-end=\"961\"\u003e\n\u003ch2 data-start=\"963\" data-end=\"995\"\u003e\u003cstrong data-start=\"966\" data-end=\"993\"\u003ePerformance Engineering\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"996\" data-end=\"1400\"\u003e\n\u003cli data-start=\"996\" data-end=\"1157\"\u003e\n\u003cp data-start=\"998\" data-end=\"1157\"\u003e\u003cstrong data-start=\"998\" data-end=\"1022\"\u003eMaximum Flow Design:\u003c\/strong\u003e Single \u003cstrong data-start=\"1030\" data-end=\"1049\"\u003e3.5\" midsection\u003c\/strong\u003e transitioning into \u003cstrong data-start=\"1069\" data-end=\"1098\"\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-start=\"1158\" data-end=\"1279\"\u003e\n\u003cp data-start=\"1160\" data-end=\"1279\"\u003e\u003cstrong data-start=\"1160\" data-end=\"1187\"\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-start=\"1280\" data-end=\"1400\"\u003e\n\u003cp data-start=\"1282\" data-end=\"1400\"\u003e\u003cstrong data-start=\"1282\" data-end=\"1309\"\u003ePrecision Construction:\u003c\/strong\u003e TIG-welded \u003cstrong data-start=\"1321\" data-end=\"1345\"\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 width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/h6xlGdmZRVY?si=AFFhwXlGb0dh3FFU\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003chr data-start=\"1402\" data-end=\"1405\"\u003e\n\u003ch2 data-start=\"1407\" data-end=\"1423\"\u003e\u003cstrong data-start=\"1410\" data-end=\"1421\"\u003eFitment\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1424\" data-end=\"1453\"\u003e\n\u003cli data-start=\"1424\" data-end=\"1453\"\u003e\n\u003cp data-start=\"1426\" data-end=\"1453\"\u003e\u003cstrong data-start=\"1426\" data-end=\"1451\"\u003e2017+ BMW G29 Z4 M40i\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1455\" data-end=\"1458\"\u003e\n\u003ch2 data-start=\"1460\" data-end=\"1477\"\u003e\u003cstrong data-start=\"1463\" data-end=\"1475\"\u003eFeatures\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1478\" data-end=\"1799\"\u003e\n\u003cli data-start=\"1478\" data-end=\"1517\"\u003e\n\u003cp data-start=\"1480\" data-end=\"1517\"\u003eFully mandrel-bent for maximum flow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1518\" data-end=\"1559\"\u003e\n\u003cp data-start=\"1520\" data-end=\"1559\"\u003ePrecision TIG welds for high strength\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1560\" data-end=\"1595\"\u003e\n\u003cp data-start=\"1562\" data-end=\"1595\"\u003eBuilt from T304 stainless steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1596\" data-end=\"1655\"\u003e\n\u003cp data-start=\"1598\" data-end=\"1655\"\u003eElectronic-actuated valves for rapid and reliable operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1656\" data-end=\"1701\"\u003e\n\u003cp data-start=\"1658\" data-end=\"1701\"\u003e11.1 lbs lighter than the factory exhaust\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1702\" data-end=\"1751\"\u003e\n\u003cp data-start=\"1704\" data-end=\"1751\"\u003eBeautiful tips to complement the Z4’s styling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1752\" data-end=\"1799\"\u003e\n\u003cp data-start=\"1754\" data-end=\"1799\"\u003e100% reversible—return to stock at any time\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1801\" data-end=\"1804\"\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":51055394259164,"sku":"BMW.Z4.G29.VSES.BR.BRSH","price":2799.99,"currency_code":"USD","in_stock":false},{"title":"(4) Burnt (3.5\" Outlet)","offer_id":51055394291932,"sku":"BMW.Z4.G29.VSES.BR.BRT","price":2799.99,"currency_code":"USD","in_stock":false},{"title":"(4) Black (3.5\" Outlet)","offer_id":51055394324700,"sku":"BMW.Z4.G29.VSES.BR.BLK","price":2799.99,"currency_code":"USD","in_stock":false},{"title":"(4) Forged Carbon (3.5\" Outlet)","offer_id":51055394357468,"sku":"BMW.Z4.G29.VSES.BR.FC","price":2799.99,"currency_code":"USD","in_stock":false},{"title":"(4) 1x1 Carbon Fiber (3.5\" Outlet)","offer_id":51055394390236,"sku":"BMW.Z4.G29.VSES.BR.RC","price":2799.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1499\/1068\/files\/A7402056_297439d7-bd4d-49bb-9930-def97c8caa43.jpg?v=1780604526","url":"https:\/\/garagemonkey.net\/products\/bmw-g29-z4-valved-sport-exhaust-system","provider":"Garage Monkey","version":"1.0","type":"link"}