Reviewed By William A N (Keaau, HI) Reviewed for a 2004 Jeep Wrangler —5/20/2016 1:41 PM
Not sure about mileage, but power and sound is better. As others stated, will not work with tow hitch. Mechanic custom made turn down tip and welded.
Reviewed By John I (WEBSTER, NY) Reviewed for a 2016 Jeep Wrangler —9/8/2017 8:36 PM
Loved what the Series II system did for mF150 Coyote motor so I wanted to try it on my Jeep so I could tell that it was running. Still sounds like a 6 cylinder but brings out a mild motor sound that definitely enhances your ability to hear it run through it's shift points. Solid pipe and muffler system with low tones and no drones at any speed. Requires a lift to get it high enough to maneuver the stock one piece pipe over the axle w/o cutting it. Tip could be finished better but 2 thumbs up