Flowmaster Cats & X pipe ?
I just bought this 03 GT Convertable, with the flowmaster cat & x pipe. and apears to be stock mufflers. The sound is great untill it hits about 2 thous RPM and then the very loud drone sound kicks in. On the flowmaster site they say there 3 chamber muffler is moderate? It also says it will help with the interior noise. Anybody try this or have a differant fix. Cant hear anything after 2000 RPM.
Thanks for any help