Injen Technology 63mm Stainless Steel Axel-Back Exhaust System with 4" Black Tips for the 2011-2017 Jeep Wrangler Jk. Are you looking to increase the performance and get a more aggressive sound on your Jeep? Well then, take a look at this 63mm Stainless Steel Exhaust System! The SES5004 exhaust system will help increase horsepower and torque while also adding a truly aggressive exhaust note. The Injen Technology (SES5004) 63mm Stainless Steel Axel-Back Exhaust System with 4" Black Tips comes with stainless steel mandrel-bent 63mm tubing to get as much horsepower and torque as possible. The interior and exterior noise levels are truly harmonic, which means you'll love your jeep's new deep, smooth and aggressive sound after you're done installing your new system! The Injen SES Performance Exhaust systems are made out of 304 polished stainless steel and a band clamp that'll make installation a breeze. Our exhausts deliver high-quality results at competitive prices. Plus, you can install these exhaust systems quickly and easily so your car spends the minimal amount of time in the garage. All in all, you get some extra horsepower with a satisfying growl that makes your Jeep stand out from all the rest. Order an Injen Technology (SES5004) 63mm Stainless Steel Axel-Back Exhaust System with 4" Black Tips for your 2007-2017 Jeep Wrangler today!