{"product_id":"dinan-valved-axle-back-exhaust-bmw-m3-m4-g80-g82-g83","title":"Dinan Valved Axle-Back Exhaust – BMW M3 \/ M4 (G80\/G82\/G83)","description":"\u003cstyle\u003e.sl-desc h2{font-size:1.15em;letter-spacing:.06em;text-transform:uppercase;border-bottom:2px solid #111;padding-bottom:6px;margin:1.6em 0 .7em}.sl-desc h3{font-size:1em;margin:1.2em 0 .4em}.sl-desc ul{margin:0 0 1em 1.2em}.sl-desc li{margin:.25em 0}.va-table{width:100%;border-collapse:collapse;margin:.5em 0 1em;font-size:.95em}.va-table th{text-align:left;padding:10px 8px;border-bottom:2px solid #333;white-space:nowrap}.va-table td{padding:8px;border-bottom:1px solid #e5e5e5;vertical-align:top}.sl-note{font-size:.9em;color:#555;margin:.4em 0 1em}\u003c\/style\u003e\u003cdiv class=\"sl-desc\"\u003e\n\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eThe Dinan Valved Axle-Back Exhaust for the G80\/G82\/G83 M3\/M4 opens up flow and deepens the exhaust note while retaining full electronic control over volume through the retained factory-style valve. It's a direct bolt-on replacement for the factory axle-back section, engineered to OEM-quality fit and finish and noticeably lighter than the stock system.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eT304 stainless steel construction, TIG welded with a brush finish\u003c\/li\u003e\n\u003cli\u003e76mm piping (up from 70mm stock)\u003c\/li\u003e\n\u003cli\u003eQuad 4.5\" (114mm) double-walled clamp-on tips, available in polished or black ceramic finish\u003c\/li\u003e\n\u003cli\u003eApproximately 6 lb lighter than the factory exhaust (38 lb vs. 44 lb)\u003c\/li\u003e\n\u003cli\u003e+6 hp \/ +5 lb-ft over stock\u003c\/li\u003e\n\u003cli\u003eComputer-controlled electronic exhaust valve retained for on-demand volume control\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on using factory hangers and connection points\u003c\/li\u003e\n\u003cli\u003eApprox. 2.7 hours of installation labor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDinan valved axle-back exhaust section, tips in the selected finish\u003c\/li\u003e\n\u003cli\u003eRequired clamps, gaskets, and mounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003ch3\u003eAdditional Parts Required\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eThe \u003ca href=\"\/products\/dinan-dual-exhaust-valve-remote\"\u003eDinan Dual Exhaust Valve Remote (R660-0002)\u003c\/a\u003e is sold separately and is required to manually override the electronic valve independent of drive mode.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eInstallation instructions: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/c2a2c99b4de294ddfdb2c0b8bd11fb551b2cbd57_097562e7-8a3f-4864-9e87-9ea7db7d5ff5.pdf?v=1788302521\"\u003ePDF\u003c\/a\u003e (Dinan's own installation instructions for this part).\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm tip finish before ordering — polished (D660-0093) and black ceramic (D660-0093-BLK) are separate part numbers.\u003c\/li\u003e\n\u003cli\u003eThis listing previously bundled 8 unrelated Dinan part numbers (M2, X5 M\/X6 M, X3 M\/X4 M, and the valve remote) as variants of this product. Those have been split into their own listings; this listing now covers only the G8x M3\/M4 axle-back.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eD660-0093\u003c\/strong\u003e — Polished tips\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD660-0093-BLK\u003c\/strong\u003e — Black ceramic tips\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable class=\"va-table\"\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\u003c\/td\u003e\n\u003ctd\u003eG80\u003c\/td\u003e\n\u003ctd\u003eS58\u003c\/td\u003e\n\u003ctd\u003e2021–2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3 Competition\u003c\/td\u003e\n\u003ctd\u003eG81\u003c\/td\u003e\n\u003ctd\u003eS58\u003c\/td\u003e\n\u003ctd\u003e2021–2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003eG82\u003c\/td\u003e\n\u003ctd\u003eS58\u003c\/td\u003e\n\u003ctd\u003e2021–2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4 Competition\u003c\/td\u003e\n\u003ctd\u003eG83\u003c\/td\u003e\n\u003ctd\u003eS58\u003c\/td\u003e\n\u003ctd\u003e2021–2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Dinan","offers":[{"title":"Polished","offer_id":52563790364952,"sku":"D660-0093","price":2349.95,"currency_code":"USD","in_stock":true},{"title":"Black Ceramic Coated","offer_id":52563790397720,"sku":"D660-0093-BLK","price":2349.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/b0620cb8a82f0494c38a013c920a7caf9c92b4b2.avif?v=1788303219","url":"https:\/\/speedlogicauto.com\/products\/dinan-valved-axle-back-exhaust-bmw-m3-m4-g80-g82-g83","provider":"SPEED LOGIC","version":"1.0","type":"link"}