Reviewed By Ashley M (CYPRESS, TX) Reviewed for a 2007 Pontiac G5 —4/18/2013 11:01 PM
The sound is noticeably different, could be louder though, going to make some mods. Adds some hp, great combo with my injen cold air intake!
Reviewed By RENE S (Arlington, TX) Reviewed for a 2005 Pontiac GTO —3/24/2017 6:48 AM
These Super 40's really woke the car up. Very noticeable gain in acceleration. I also had my muffler shop install an X-Pipe and wow did this pairing wake this GTO up. Spent half of what a cat back system would of cost.