{"product_id":"mrt-engineering-18-20-jeep-wrangler-3-6l-mrt-version-3-jl4-axle-back-90r139","title":"MRT Engineering 18-20 Jeep Wrangler 3.6L MRT Version 3 JL4 Axle-Back - 90R139","description":"MRT Engineering 18-20 Jeep Wrangler 3.6L MRT Version 3 JL4 Axle-Back - 90R139\u003cbr\u003e\u003cbr\u003eThe MRT Wrangler 3.6L Version 3 JL4 Axle-Back system has a loud, deep muscle car sound and is handcrafted in corrosion-resistant T304 Stainless Steel. Base systems include T304 polished SS 4\" tips and 2.5\" mandrel-bent tube. Black Ops black matte tip finish is available for an additional fee. This system is engineered for the best sound to match your Jeep and provides increased performance from the increased exhaust flow. \u003cspan id=\"docs-internal-guid-5039a17d-7fff-b4db-da5e-b06ca0c5d247\"\u003eVersion 3 \u003cspan id=\"docs-internal-guid-afc9ef2b-7fff-17ba-416d-0cfc00af78c0\"\u003e\u003cspan style=\"font-size: 12pt; font-family: Arial; color: rgb(29, 34, 40); font-variant-numeric: normal; font-variant-east-asian: normal; vertical-align: baseline; white-space: pre-wrap;\"\u003eis the loudest MRT exhaust \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: 12pt; white-space: pre-wrap; background-color: initial; letter-spacing: 0px;\"\u003ewith enough elevated sound to Get Noticed, plenty of opportunities to Feel the Performance ,and packaged in a design without the excessive drone.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003cdiv\u003e\n\t\u003cb\u003eApplication:\u003c\/b\u003e 2018 thru 2020 Wrangler 3.6L, \u003cb\u003e4 Door. \u003cbr\u003e\u003c\/b\u003eFor 2 Door models please refer to MRT part #\u003ca href=\"https:\/\/www.shopmrt.com\/18-20-Jeep-Wrangler-MRT-Version-3-JL2-AxleBack-p\/90r140.htm\"\u003e90R140\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eHear the Difference \u003c\/b\u003e\u003cbr\u003e\n\t\u003cul style=\"letter-spacing: normal;\"\u003e\n\t\t\u003cli\u003eHow does it sound? The MRT Wrangler Version 3 JL4 Axle-Back #90R139 has a loud, deep muscle car sound.\u003c\/li\u003e\n\t\t\u003cli\u003eIs there drone or resonance? The drone is noticeable but tolerable.\u003c\/li\u003e\n\t\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\t\u003c\/ul\u003e\n\tAre 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\t\u003cdiv style=\"margin-left: 60px;\"\u003e\n\t\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\t\u003c\/div\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? Limited Lifetime Warranty (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\"\u003cb\u003e \u003c\/b\u003edouble wall 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":48142497546498,"sku":"MRT-90R139","price":829.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/90R139-1.jpg?v=1784989797","url":"https:\/\/www.lethalperformance.com\/products\/mrt-engineering-18-20-jeep-wrangler-3-6l-mrt-version-3-jl4-axle-back-90r139","provider":"Lethal Performance","version":"1.0","type":"link"}