Ive had a GT takeoff on my car for about 2 months now and today I had the driver's side put in. When in park it sounds great but when im driving and get on it it sounds like a dirtbike. Will this change, and could it be because one muffler is already broken in? I have an H pipe.

 

mine sounds fine so im guessing its because ones broken in and one isnt thats giving u a mixed noise. stick with it

Paul

 

That is strange. Are you sure there aren’t any exhaust leaks? If not then give it a few weeks.

 

could this cause a problem? Ill have to look tom.

 

Im just confused because in park or neutral it sounds great till I start driving. It sounds like a honda[:@]. Im not sure how to describe it but its not a uniform growl. I can hear when the exhaust flows through the muffler, like its a 1 cyl engine. Kinda like a putting sound.