Reviewed By Nicholas W (Jackson, MS) Reviewed for a 2009 Pontiac G8 —5/23/2015 12:04 AM
These mufflers give an aggressive deep rich sound as promised..... glad i purchased these mufflers.
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.
Reviewed By jason s (Concord, CA) —7/24/2017 6:42 AM
this is my second one of these. great build quality, can get a little drony if installed with no resonator on a 3.00" or larger pipe. and the stainless 409 version comes coated in something - not sure if ceramic paint or just high temp paint, but it looks MUCH better polished. great quality.