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 Cory B (Trinity, NC) Reviewed for a 2008 Pontiac G8 —1/2/2014 8:32 PM
This exhaust is just what I was looking for. It really opened up the car ALOT. It gives a nice smooth rubble while accelerating but when you get to cruising speed you can barely hear a drone inside the cab. Great hp increase, too early to tell about mpg. Def best bang for your buck.