Reviewed By Charles S (LIZTON, IN) Reviewed for a 2003 GMC Yukon —4/26/2014 7:31 AM
Easy to install, great sound! A huge improvement over factory.
Reviewed By Scott N (Sherwood, OR) Reviewed for a 2003 GMC Yukon —5/22/2010 3:12 PM
The flowmaster exhaust sounds great on my 2003 GMC Denali. The install took about 3 hours, and was done in my driveway. It took a little bit of time to get all of the joints to line up the way I wanted them to. The only problem I ran into was that the exhaust clamp from the muffler to the tailpipe would not clamp down tight enough. By putting an extra couple of washers on the clamp i was able to get it clamped down. Overall it was fairly easy to install and i am very happy with the results. It gives a far more aggressive sound than the stock system. Would definately purchase again.
Reviewed By Michael C (Houston, TX) Reviewed for a 2003 GMC Yukon —8/1/2008 6:39 AM
...go for one of the other exhausts like Magnaflow or Flowmaster. I pretty much got what i wanted. I wanted to be able to hear the exhaust but without the uncontrolled constant roar throughout the RPM. With Gibson you have that control. When you wanna hear it, lay on it! If you're just looking for an increase in MPG's, I don't think this one's for you. I may have rec'd half an MPG increase. But of course i've only gone through about 250 city driven miles, so I may be wrong. I need a highway test really. As far as the quality, it is just as impressive as i'd read. I'm sure i'll never need another catback. Hope this helps someone.