Just wondering .. when i got my y-pipe
the stock muffler ,,i could actually hear it after putting it in ..but its been a few months and its seems like the muffler is even louder lately,,, is this normal? did my muffler
break in or something? anyway i like it
it sounds cool . i dont think i have a leak anywhere that i know of just wondering.....

 

I don't think so. I ran a stock cat back w/ my Y and RT cat. The stock system definately got louder but not by much. Nice really. I think it's just because you are letting more flow and the the aftermarket y is not cancelling out as much of the noise as the stock one does.