{"product_id":"dinan-d660-0077-freeflow-axle-back-exhaust","title":"Dinan D660-0077 - Freeflow Axle-Back Exhaust","description":"\u003cp\u003eDinan D660-0077 - Freeflow Axle-Back Exhaust\u003c\/p\u003e\u003cp\u003eDinan Free Flow Axle-Back Exhaust - 2017-2020 BMW 440i\u003c\/p\u003e\u003cp\u003eFreeflow Axle-Back Exhaust; 304 Stainless Steel Construction; 6 Max Horsepower Gain At 6600 RPM; 5 lbs.-ft. Max Torque Gain; Twin 89 mm. \/ 3.5 in. Laser Engraved Polished Tips;\u003c\/p\u003e\u003cp\u003eDinan engineers designed the exhaust to improve exhaust flow by reducing back pressure, resulting in increased power output and a great sporty sound that is civilized when you want it to be, and pleasantly aggressive under hard acceleration. Not only is the tone improved but the additional burbles and pops that come with it are simply intoxicating. Dinan also incorporates a Helmholtz chamber design that reduces resonance or drone at low RPM. The system is built to exacting specifications to ensure perfect fit using the factory hangers. It is made from 100% 16 gauge 304 stainless steel and will resist corrosion for years to come. The design features twin 89 mm. (3.5 in.) polished exhaust tips for a tasteful, high-performance look. Maximum performance gains are 6 horsepower and 5 ft.-lbs. of torque.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eImproves Exhaust Flow By Reducing Back Pressure\u003c\/li\u003e\n\u003cli\u003eIncreases Power Output And Provides Great Sporty Sound\u003c\/li\u003e\n\u003cli\u003eSystem Ensures Perfect Fit Using The Factory Hangers\u003c\/li\u003e\n\u003cli\u003eThe System Will Resist Corrosion For Years To Come\u003c\/li\u003e\n\u003cli\u003eUses The Factory Brackets And Hangers For Factory-Like Fitment\u003c\/li\u003e\n\u003cli\u003eHelmholtz Chamber To Reduce Resonance Or Drone At Low RPM\u003c\/li\u003e\n\u003cli\u003eEnjoyably Louder \/ Sportier Sound\u003c\/li\u003e\n\u003cli\u003eFactory Computer-Controlled Exhaust Valve Is Eliminated\u003c\/li\u003e\n\u003cli\u003eThe Design Features Tips For Tasteful \/ High-Performance Look\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: \u003cspan\u003eT304 Stainless Steel\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: \u003cspan\u003eDinan\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCategory\u003c\/strong\u003e: \u003cspan\u003eExhaust\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eClamps Included\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eDinan Point Value\u003c\/strong\u003e: \u003cspan\u003e3\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEmission Code\u003c\/strong\u003e: \u003cspan\u003e5\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eExhaust Tip Quantity\u003c\/strong\u003e: \u003cspan\u003e2\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: \u003cspan\u003eBrushed\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eGrade Type\u003c\/strong\u003e: \u003cspan\u003ePerformance\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eHangers Included\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: \u003cspan\u003e11\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eLabor Time (Hours)\u003c\/strong\u003e: \u003cspan\u003e1.2\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: \u003cspan\u003e48\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: \u003cspan\u003eT304 Stainless Steel\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMax HP Gain\u003c\/strong\u003e: \u003cspan\u003e6 @ 6600 RPM\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMax Torque (lb-ft) Gain\u003c\/strong\u003e: \u003cspan\u003e5 @ 6600 RPM\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMuffler Quantity\u003c\/strong\u003e: \u003cspan\u003eN\/A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePipe Material\u003c\/strong\u003e: \u003cspan\u003eT304 Stainless Steel\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: \u003cspan\u003eAxle-Back Exhaust\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eTip Finish\u003c\/strong\u003e: \u003cspan\u003ePolished\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWarning\u003c\/strong\u003e: \u003cspan\u003eCalifornia Proposition 65\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: \u003cspan\u003e45\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: \u003cspan\u003e30\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Dinan","offers":[{"title":"Default Title","offer_id":47292248752266,"sku":"DIN-D660-0077","price":1649.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/0619\/2778\/files\/0_d660-0077_1_normalized.jpg?v=1776301850","url":"https:\/\/www.onlyinstock.com\/products\/dinan-d660-0077-freeflow-axle-back-exhaust","provider":"Only In Stock","version":"1.0","type":"link"}