E46 Fanatics Forum banner

Superprint break in

1K views 4 replies 3 participants last post by  jackyboym3 
#1 ·
Just installed the SS race muffler. It's really raspy is that due to the muffler being new? Will it break in and change tones?
 
#5 ·
I have some eBay headers, I want to install them just nervous the drone will be too much.
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top