Reviewed By steve g (HIGHLAND, IN) Reviewed for a 2008 Pontiac Grand Prix —3/8/2017 8:21 PM
Great gain in performance, but did add a little more noise from exhaust.
Reviewed By Mitchell M (Clanton, AL) Reviewed for a 1997 Pontiac Firebird —9/26/2017 7:25 AM
Great product except the knuckle on the steering hits one of the pipes. I had to bend the pipe to make room for the knuckle and avoid wear and tear which would eventually wear a hole in the pipe and create an exhaust leak. There's no way to know until the motor is in where the knuckle makes contact with the pipe. I hope the manufacturer will make this adjustment going forward.
Reviewed By Fred S (International falls, MN) —5/16/2017 11:22 AM
the manifolds l got were cast iron l was hoping for the stainless steel welded ones But maybe next time they are forever cracking on the triton 5.4 the cast ones fit perfect I'am very happy with them Thanks Fred
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