For over 40 years, BORLA has been the go-to exhaust Jeep owners have aspired to own. Our BORLA R&;D engineers developed a direct bolt-on exhaust that, being manufactured out of lightweight aircraft grade T-304 stainless steel, approaches half the weight of the stock system. This system also features oversized tubing and a 14? long BORLA embossed 4? round rolled fully polished tip. Part #140158 exhibits a great V8 growl, significant performance upgrades and perhaps an even more interesting attribute today ? increased fuel mileage. BORLA takes pride in manufacturing all exhaust components from premium, high-quality T-304 austenitic stainless steel, which is extremely durable and ideal for the off-road as well as normal highway use. BORLA; backs up the quality of their exhaust with the best warranty in the industry. No trick words or hidden phrases to mislead, just a simple Million-Miles on the entire BORLA exhaust. If you have driven your all-wheel- drive Jeep with BORLA exhaust less than that, we have you covered?..it is that good!