Quote Originally Posted by misterman View Post
Interesting i have never heard of a non cat. What does it do? will it clean the emissions? Will it make the car a little quieter i don't really like the huge grumble/raspsy sound it makes now. Which i think it makes that noise because i have an exhaust leak, and i am hoping that welding on a cat will solve that issue. Also is there any gains? or will it rob the gains since a "non-cat" is going back on?
Quote Originally Posted by matt5112 View Post
Does it need to DO anything?

If not.... Frozen boost has a "non-cat" for less money.

Will this also help with the grumble/raspsy sound it makes? Cause mine doesn't have a CAT either.