{"id":2925,"date":"2026-08-26T15:16:40","date_gmt":"2026-08-26T15:16:40","guid":{"rendered":"https:\/\/revexaauto.com\/product\/exhaust-system-downpipe-w-heat-shield-bmw-b58-engine-f-g-chassis-toyota-supra\/"},"modified":"2026-08-28T03:48:11","modified_gmt":"2026-08-28T03:48:11","slug":"exhaust-system-downpipe-w-heat-shield-bmw-b58-engine-f-g-chassis-toyota-supra","status":"publish","type":"product","link":"https:\/\/revexaauto.com\/zh\/product\/exhaust-system-downpipe-w-heat-shield-bmw-b58-engine-f-g-chassis-toyota-supra\/","title":{"rendered":"Exhaust System Downpipe w\/ heat shield &#8211;  BMW B58 engine F, G Chassis &amp; Toyota Supra"},"content":{"rendered":"<p data-start=\"308\" data-end=\"723\">Maximize your B58 engine&#8217;s performance with the <strong data-start=\"356\" data-end=\"406\">High-Flow Downpipe with Integrated Heat Shield<\/strong>, engineered to unleash hidden horsepower and transform your driving experience. Whether you&#8217;re behind the wheel of a BMW or Toyota Supra, this premium downpipe upgrade significantly enhances exhaust flow, turbo response, and overall sound \u2013 all while protecting surrounding components with a built-in thermal shield.<\/p>\n<p data-start=\"725\" data-end=\"749\"><strong data-start=\"725\" data-end=\"747\">Compatible Models:<\/strong><\/p>\n<ul data-start=\"750\" data-end=\"858\">\n<li data-start=\"750\" data-end=\"776\">\n<p data-start=\"752\" data-end=\"776\">BMW F30\/F32 340i, 440i<\/p>\n<\/li>\n<li data-start=\"777\" data-end=\"804\">\n<p data-start=\"779\" data-end=\"804\">BMW G20\/G22 340i, M340i<\/p>\n<\/li>\n<li data-start=\"805\" data-end=\"824\">\n<p data-start=\"807\" data-end=\"824\">BMW G29 Z4 M40i<\/p>\n<\/li>\n<li data-start=\"825\" data-end=\"858\">\n<p data-start=\"827\" data-end=\"858\">Toyota GR Supra A90\/A91 (2020+)<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"860\" data-end=\"877\"><strong data-start=\"860\" data-end=\"877\">Key Features:<\/strong><\/p>\n<ul data-start=\"879\" data-end=\"2379\">\n<li data-start=\"879\" data-end=\"1046\">\n<p data-start=\"881\" data-end=\"1046\"><strong data-start=\"881\" data-end=\"901\">High-Flow Design<\/strong><br data-start=\"901\" data-end=\"904\">Drastically reduces exhaust backpressure and improves turbo spool, delivering noticeable gains in horsepower, torque, and throttle response.<\/p>\n<\/li>\n<li data-start=\"1048\" data-end=\"1263\">\n<p data-start=\"1050\" data-end=\"1263\"><strong data-start=\"1050\" data-end=\"1076\">Integrated Heat Shield<\/strong><br data-start=\"1076\" data-end=\"1079\">Built-in stainless steel heat shielding protects surrounding engine bay components from excessive heat, helping maintain lower underhood temperatures and better long-term durability.<\/p>\n<\/li>\n<li data-start=\"1265\" data-end=\"1463\">\n<p data-start=\"1267\" data-end=\"1463\"><strong data-start=\"1267\" data-end=\"1299\">Precision Fit for B58 Engine<\/strong><br data-start=\"1299\" data-end=\"1302\">Engineered specifically for the B58 3.0L turbocharged inline-6 engine platform across both BMW and Toyota applications, ensuring exact fitment and performance.<\/p>\n<\/li>\n<li data-start=\"1465\" data-end=\"1639\">\n<p data-start=\"1467\" data-end=\"1639\"><strong data-start=\"1467\" data-end=\"1496\">Catted or Catless Options<\/strong><br data-start=\"1496\" data-end=\"1499\">Choose from <strong data-start=\"1513\" data-end=\"1533\">high-flow catted<\/strong> for emissions-friendly performance or <strong data-start=\"1572\" data-end=\"1583\">catless<\/strong> for maximum flow and aggressive sound (track use only).<\/p>\n<\/li>\n<li data-start=\"1641\" data-end=\"1838\">\n<p data-start=\"1643\" data-end=\"1838\"><strong data-start=\"1643\" data-end=\"1688\">Mandrel-Bent Stainless Steel Construction<\/strong><br data-start=\"1688\" data-end=\"1691\">Made from T304 stainless steel for excellent corrosion resistance, heat tolerance, and long-lasting durability under high-performance conditions.<\/p>\n<\/li>\n<li data-start=\"1840\" data-end=\"2006\">\n<p data-start=\"1842\" data-end=\"2006\"><strong data-start=\"1842\" data-end=\"1867\">Improved Exhaust Note<\/strong><br data-start=\"1867\" data-end=\"1870\">Delivers a deeper, more aggressive tone under throttle without unwanted drone \u2013 especially noticeable with upgraded cat-back exhausts.<\/p>\n<\/li>\n<li data-start=\"2008\" data-end=\"2206\">\n<p data-start=\"2010\" data-end=\"2206\"><strong data-start=\"2010\" data-end=\"2046\">Supports Higher Tuning Potential<\/strong><br data-start=\"2046\" data-end=\"2049\">Ideal for vehicles running a Stage 2+ tune or higher. Combined with ECU tuning, expect gains of <strong data-start=\"2147\" data-end=\"2160\">+40\u201370 HP<\/strong>, depending on other supporting modifications.<\/p>\n<\/li>\n<li data-start=\"2208\" data-end=\"2379\">\n<p data-start=\"2210\" data-end=\"2379\"><strong data-start=\"2210\" data-end=\"2234\">Bolt-On Installation<\/strong><br data-start=\"2234\" data-end=\"2237\">Direct replacement for the factory downpipe. All necessary hardware included. Professional installation and ECU tuning strongly recommended.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2381\" data-end=\"2384\">\n<p data-start=\"2386\" data-end=\"2570\"><strong data-start=\"2386\" data-end=\"2449\">Unleash the full potential of your B58-powered BMW or Supra<\/strong> with this high-performance downpipe upgrade \u2014 combining power, sound, and thermal efficiency in one must-have component.<\/p>","protected":false},"excerpt":{"rendered":"<p>Maximize your B58 engine&#8217;s performance with the High-Flow Downpipe with Integrated Heat Shield, engineered to unleash hidden horsepower and transform your driving experience. Whether you&#8217;re behind the wheel of a BMW or Toyota Supra, this premium downpipe upgrade significantly enhances exhaust flow, turbo response, and overall sound \u2013 all while protecting surrounding components with a [&hellip;]<\/p>\n","protected":false},"featured_media":6364,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[156],"product_cat":[124,119],"product_tag":[],"class_list":["post-2925","product","type-product","status-publish","has-post-thumbnail","product_brand-toyota","product_cat-exhaust-systems-tips","product_cat-toyota","pa_color-other-color","pa_make-toyota","pa_material-other-material","pa_vehicle-model-supra","first","instock","shipping-taxable","purchasable","product-type-variable"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4-RC2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Exhaust System Downpipe w\/ heat shield - BMW B58 engine F, G | RevexaAuto<\/title>\n<meta name=\"description\" content=\"Shop Exhaust System Downpipe w\/ heat shield - BMW B58 engine F, G Chassis &amp; Toyota Supra. 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