Quote:

Aren't the F.A.S.T. cars using 2.5"? Pretty sure and they are in the 10's. If that's quick enough for you, stay with the 2.5".



Well yes they are because the rules dictate 2.5". Would they be faster with 3"??? Dunnno.

All I know is I put a 3" TTI sytem on my 71 cuda and it was very loud.

2017 Contusion Blue Challenger T/A 392 M6 "BLKNBLU"