For all of you who have aftermarket exhaust systems was there a break-in period? Ive been searching this site and others and have found mixed opinions. Some say u dont realize the true power and sound gains until after a few hundred miles, and others say their is no break in period. Thoughts?

 

there is no break in period as such but it will sound different when the carbon builds up inside ( not a lot of carbon though obviously ) the note will get better