Reviewed By Matthew G (Swartz Creek, MI) Reviewed for a 2006 Pontiac Grand Prix —10/10/2013 7:19 AM
I had been planning on buying this for my 2006 Grand Prix GXP for awhile now and I'm glad I finally bought it. I had a local shop install it for me since I don't have welding equipment. Sound it deep and rich without being overly loud. Throttle response in conjunction with my air intake is a great improvement over stock.