I put a complete Megan Racing system (Y Pipe to Tail Pipe) on my 03 G35 Sedan in the fall of '14 and after 6 months or so with it, it's really too loud. Does anyone have any suggestions on how to quiet it down? I would hate to pull the whole thing off but might do that if there isn't a cheap and easy solution.

 

You can cut part of the exhaust out and instal a some kinda muffler