{"product_id":"mrt-engineering-13-18-focus-st-ecoboost-mrt-kr-axle-back-91j101","title":"MRT Engineering 13-18 Focus ST Ecoboost MRT KR Axle-Back - 91J101","description":"MRT Engineering 13-18 Focus ST Ecoboost MRT KR Axle-Back - 91J101\u003cbr\u003e\u003cbr\u003eThe Focus ST MRT KR Axle-Back has a loud, deep muscle car sound and is handcrafted in T304 Stainless Steel. This system includes 2.5\" mandrel bent tube and dual 4\" double wall, polished T304 stainless steel tips with beveled edges. This system is engineered for the best sound to match your vehicle and provides increased performance from increased exhaust flow. The KR Axle-Back is the Loudest MRT Axle-back for your Focus ST. It has just enough exhaust presence with elevated sound to Get Noticed,  plenty of opportunity to Feel the Performance and packaged in a design without excessive drone.\u003cbr\u003e \u003cbr\u003e\u003cb\u003eApplication:\u003c\/b\u003e 2013 thru 2018 Focus ST Ecoboost. 2.0L 4-cylinder\u003cbr\u003e\u003cbr\u003e\u003cb\u003eHear the Difference \u003c\/b\u003e\u003cbr\u003e\n\u003cul style=\"letter-spacing: normal;\"\u003e\n\t\u003cli\u003eHow does it sound? The Focus ST MRT KR Axle-Back #91J101 has a loud, deep muscle car sound\u003c\/li\u003e\n\t\u003cli\u003eIs there drone or resonance? The drone is noticeable but tolerable.\u003c\/li\u003e\n\t\u003cli\u003eWhat if I step on it? Wide-open throttle increases exhaust loudness and tone to an aggressive performance sound.\u003c\/li\u003e\n\u003c\/ul\u003eAre you located close to Plymouth, MI and need your MRT aftermarket exhaust installed? Call MRT at 734-455-5807 to make an appointment today!\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"margin-left: 60px;\"\u003e\n\t\u003cimg src=\"https:\/\/www.shopmrt.com\/v\/vspfiles\/templates\/AB\/images\/productoverlay\/t304.png\" width=\"60px\" style=\"background-color: initial;\"\u003e \u003cimg src=\"https:\/\/www.shopmrt.com\/v\/vspfiles\/templates\/AB\/images\/productoverlay\/handcrafted.png\" width=\"155px\" style=\"background-color: initial;\"\u003e \u003cimg src=\"https:\/\/www.shopmrt.com\/v\/vspfiles\/templates\/AB\/images\/productoverlay\/usalogo.png\" width=\"40px\" style=\"background-color: initial;\"\u003e\n\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eProduct Quality\u003c\/b\u003e \u003cbr\u003e\n\u003cul\u003e\n\t\u003cli\u003eWhat kind of steel is it made from? Corrosion-resistant T304 stainless steel. \u003c\/li\u003e\n\t\u003cli\u003eWhere is it made? Developed and handcrafted in-house at MRT facility in Plymouth, Michigan,  USA. \u003c\/li\u003e\n\t\u003cli\u003eHow long is the Warranty? \u003ca href=\"https:\/\/www.shopmrt.com\/Limited-Lifetime-Warranty-MRT-Exhaust-Systems-s\/1989.htm\"\u003eLimited Lifetime Warranty\u003c\/a\u003e (See Warranty Page for Details) \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cb\u003eFeel the Performance\u003c\/b\u003e\u003cbr\u003e\n\u003cul style=\"letter-spacing: normal;\"\u003e\n\t\u003cli\u003eWhat is the muffler design? Straight through design to provide maximum exhaust gas flow.\u003c\/li\u003e\n\t\u003cli\u003eWhat is the tube diameter? A large 2.5\" tube is used for reduced exhaust flow restrictions.\u003c\/li\u003e\n\t\u003cli\u003eWhat are the performance gains? Reducing restriction and maximizing flow provides for noticeable gains.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cb\u003eGet Noticed\u003c\/b\u003e\u003cbr\u003e\n\u003cul style=\"letter-spacing: normal;\"\u003e\n\t\u003cli\u003eWhat kind of tip is it? Dual 4\" double wall, polished T304 stainless steel tips with beveled edges..\u003c\/li\u003e\n\t\u003cli\u003eWhat are my tip finish options? Stylish Polished Stainless Steel or Black Ops Matte Ceramic.\u003c\/li\u003e\n\t\u003cli\u003eHow do I get noticed? Great sound and great looks turn heads and get positive comments!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003chr\u003e\n\u003cdiv class=\"prop65-ctn\"\u003e\n\t\u003ca href=\"https:\/\/www.p65warnings.ca.gov\" target=\"_blank\"\u003e\n\t\u003cimg src=\"\/v\/vspfiles\/templates\/AB\/images\/logos\/prop65_lg.png\"\u003e\n\t\u003c\/a\u003e\n\u003c\/div\u003e\n\u003chr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eLethal Performance is proud to offer the entire line of  products!\u003cbr\u003e","brand":"MRT Engineering","offers":[{"title":"Default Title","offer_id":48142497874178,"sku":"MRT-91J101","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/91J101-1.jpg?v=1784989806","url":"https:\/\/www.lethalperformance.com\/products\/mrt-engineering-13-18-focus-st-ecoboost-mrt-kr-axle-back-91j101","provider":"Lethal Performance","version":"1.0","type":"link"}