Reviewed By Nicole H (Staten Island, NY) Reviewed for a 2007 Audi A4 —5/4/2016 11:22 AM
Installed and sounds great. Don't do straight pipe to mufflers. Need resonators in between to remove drone
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.