Sep 7, 2010, 8:12 pm · #1
hey guys i got a cat back exhaust made for my car.its 2.5 inches.should i go with the same size mid pipe???or sumthing smaller like 2.25???????need to know asap to finish my exhaust
Wat Size Mid Pipe Should I Install For My Cat Back
Sep 7, 2010, 11:10 pm · #2
Make it 2 1/2" if the cat back is 2 1/2". Making the front smaller will just make it noisier.