{"product_id":"dinan-free-flow-axle-back-exhaust-for-2020-24-x3-m-2020-25-x4-m-d660-0086-blk-astr02","title":"Dinan Free Flow Axle-Back Exhaust for 2020-24 X3 M, 2020-25 X4 M - D660-0086-BLK","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eGive your BMW X3M or X4M a deeper, louder exhaust note and more aggressive quad-tip appearance with the Dinan D660-0086-BLK Free Flow Axle-Back Exhaust. Designed for select 2020-2025 BMW F97 X3M and F98 X4M applications, this performance exhaust is constructed from TIG-welded T304 stainless steel and features larger 76mm piping, retained computer-controlled exhaust valves, and four 4.5-inch black ceramic coated exhaust tips. Dinan reports maximum gains of 8 HP and 6 lb-ft of torque at 6,600 RPM while reducing system weight by approximately 5 pounds compared with stock.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Dinan Free Flow system increases pipe diameter from the factory 70mm to 76mm for improved exhaust flow. When the valves open under high-load conditions, exhaust is directed through the freer-flowing outer paths for a deeper, fuller, more aggressive tone. With the valves closed, gases are routed through the muffler and exit the inner tips for quieter operation. Internal drone-abatement technology helps control unwanted cabin resonance regardless of valve position.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFour 114mm (4.5-inch) double-wall tips fill the factory rear valance openings and feature Dinan's straight-cut design, laser-engraved branding, and black ceramic coating. Dinan's inverted-clamp “Tuck-it” tip design helps conceal the clamps for a cleaner installed appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eKey Features \u0026amp; Specs:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Dinan\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eSeries:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Free Flow\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Axle-Back Exhaust\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePart Number:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e D660-0086-BLK\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eFitment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e BMW X3M \/ X4M\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eChassis:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e F97 \/ F98\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMaterial:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e T304 Stainless Steel\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBody Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e T304 Stainless Steel\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePipe Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e T304 Stainless Steel\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eConstruction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e TIG-Welded\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eSystem Finish:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Brushed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eTip Finish:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Black Ceramic Coated\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eExhaust Tip Quantity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 4\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eTip Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 4.5 in \/ 114mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eTip Style:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Straight-Cut, Double-Walled, Clamp-On\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eTip Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Inverted-clamp “Tuck-it” design\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eTip Branding:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Laser-Engraved Dinan Logo\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePipe Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 76mm vs. 70mm stock\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMaximum HP Gain:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e +8 HP at 6,600 RPM\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMaximum Torque Gain:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e +6 lb-ft at 6,600 RPM\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eWeight Reduction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 5 lb lighter than stock\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eExhaust Valves:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Twin 76mm computer-controlled valves\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eValve Restriction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Dinan states the 76mm valves are 30% less restrictive than OE valves\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eValve Operation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Retained for quieter low-speed driving and increased flow under high-load conditions\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eSound:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Louder, deeper, sportier exhaust tone\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eDrone Control:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Drone-abatement technology designed to reduce cabin resonance\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eInstallation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Bolt-on\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMounting Hardware:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Included\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eClamps Included:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Yes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHangers Included:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Yes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eLabor Time:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2.5 hours\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eLength:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 54 in\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eWidth:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 29 in\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10 in\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eWeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 72 lb\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eGrade Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Performance\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eDinan Point Value:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eEmission Code:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 5\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eUPC:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 813725029252\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eFitment:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2020-2024 BMW X3 M - F97\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2020-2022 BMW X3 M Competition - F97\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2020-2025 BMW X4 M - F98\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2020-2022 BMW X4 M Competition - F98\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dinan","offers":[{"title":"Default Title","offer_id":45710498398294,"sku":"DNND660-0086-BLK","price":809.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/0411\/1190\/files\/l8n961yts985_05ff5447-6353-49d1-b7e3-fdd9f74d214b.jpg?v=1788772505","url":"https:\/\/truegearus.com\/products\/dinan-free-flow-axle-back-exhaust-for-2020-24-x3-m-2020-25-x4-m-d660-0086-blk-astr02","provider":"TrueGear","version":"1.0","type":"link"}