Quote Originally Posted by Sabrewings View Post
Found the problem. Flowmasters are about the worst muffler for this engine. If you want something, look into Magnaflow or something like Borla or Corsa.
No, I found the problem


Quote Originally Posted by mrbiggun1994 View Post
removed cat and rez and installed flowmaster 40's,
You should stick with the stock exhaust, unfortunately I have yet to find an exhaust that sounds good on a 3800.