T Tyson Blair Active member Joined Dec 8, 2018 Messages 30 Reaction score 25 Location TX My Car 71 mach 1 Today at 12:57 AM #1 Hello gentlemen, Has anyone replaced their stock 429 cobrajet exhaust manifolds with the FPA shorties? If so was there a noticeable improvement in top end power?
Hello gentlemen, Has anyone replaced their stock 429 cobrajet exhaust manifolds with the FPA shorties? If so was there a noticeable improvement in top end power?