FLShelbyLover Posted April 30, 2014 Report Share Posted April 30, 2014 I installed an O/R H pipe on my '14 GT500 but now it has a rattle. Any ideas what it is and how to fix it? Link to comment Share on other sites More sharing options...
txcobra Posted April 30, 2014 Report Share Posted April 30, 2014 Exhaust leaks often sound like a rattle...any chance you have something not married correctly or not tight enough? Link to comment Share on other sites More sharing options...
AZ08GT500 Posted April 30, 2014 Report Share Posted April 30, 2014 I had a ton of problems with my MRT h pipe, I took it off and went back to my factory catted H pipe, make sure you didn't twist your axle back, it's possible one of the pipes is hitting the axle/diff. Link to comment Share on other sites More sharing options...
SVTracer14 Posted May 7, 2014 Report Share Posted May 7, 2014 Most likely part of the aftermarket exhaust rubbing/hitting against the underside of your car. Put the car up on jack stands or lift and follow the exhaust pipes from start of H pipe to mufflers to find evidence of any rubbing/hitting on the under side of the car. Link to comment Share on other sites More sharing options...
FLShelbyLover Posted May 18, 2014 Author Report Share Posted May 18, 2014 I figured it out. I hadn't gotten the weld done on it. Got that done and it's gone now. Link to comment Share on other sites More sharing options...
Hopsgt500 Posted May 22, 2014 Report Share Posted May 22, 2014 What kind of difference compared to the stock catted pipes, sound/performance? Link to comment Share on other sites More sharing options...
MTYQIN Posted May 22, 2014 Report Share Posted May 22, 2014 I put the MRT catted H on my car with Flowmaster Outlaws, and it came out screaming like a straight pipe; just a tad too much goodness. Swithched to Borla ATAK and it is very aggressive, loud, with absolutely no drone anywhere in the power band. Just right. Link to comment Share on other sites More sharing options...
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