For the price and if you need a new exhaust it is a great replacement over oem. Allows the jeep 4.0 to breath better, a little more horsepower is slightly noticed fuel economy I would say has stayed the same. Has a nice tone not over bearing when you are driving around with the top off. However, once you get on it and has an louder nice rumble.
Needs better support
This is my second pacesetter system in 5 years. The support brackets installed on muffler utilizes the stock bracket on car. The design of the muffler causes most of the weight at the very end of muffler, the supports are at the beginning. (See picture in catalog) This puts all the flexing and bending on muffler to mid section connection,which eventually fails. Additional support added to car tie down fitting from rear of muffler would solve this problem.