X-Force Twin 3" Stainless Steel High Flow Cat-Back Exhaust System | 2008-2009 Pontiac G8 GT 6.0L & GXP 6.2L (ES-VE06-03)

I recently installed mine.....fits perfect, tucks nice, 1 7/8 primaries, high flow cats, full 3" cat back, 304 stainless, thick flanges....adjustable mufflers (loud and soft)!! Sounds much better than most header/ exhaust setups. Mine was pretty quiet when I first fired up the car but after putting several miles and going the break in period and a few WOT runs....it now sound Loud and clean at WOT, and a little more mellow at cruising speeds. I wish I went this setup a lot earlier!! Best part....super easy to install. The only thing you need to remove are the plugs, wires, oil dipstick. Headers just slid right in. Most other brands require you to lift up engine and unhook steering shaft which sucks.

I bought this system for my G8 GT, it bolted right up with no issues in about an hour, wiring for the control box took me about another hour. I am very happy with the quality and sound adjustability with the system. Looks great, sounds good, and gives me the option of a quiet mode so as not to wake the neighbors :)