Pontiac GT Rear Exit Exhaust Systems
'04-'06 Pontiac GTO Rear Systems in 2.5" or 3"; Systems come with standard 3" polished stainless tips; aluminized X pipe; Super Pro Street 9000 Mufflers.
Optional Choices include:
- H Pipe;
- 4" Stainless Double Wall Tips;
- Quad Tips;
- 304 Stainless Steel
SpinTech offers far more custom choices in the exhaust industry.
5 Reviews Hide Reviews Show Reviews
I’ll start with the welds on this exhaust which looked very nicely done and among the best I’ve seen on prefabricated exhaust. However, the fitment of the exhaust was not the greatest. I do understand that it’s hard because every car is different but I had to modify it some to fit. The h-pipe fit perfect and the mufflers fit good but the hangers were very off. I could only fit one hanger from each muffler as the other ones were bent in a way that would be almost impossible to fit the rubber isolators on and the passenger inside hanger I had to cut 1 1/4” off of as it was riding against my driveshaft. And the only other fitment problem was the centering of the tips in my factory locations. When all the clamps were loose I could center them left to right but when I tightened the clamps, no matter how I twisted and turned the tailpipes before tightening, the tips moved inside the cutouts nearly touching the bumper which I now have to add a brace between the tailpipes to keep them centered. As far as up and down centered, because of how the hangers are welded, I cannot center them up and down and are about 1 1/4” from the top of the bumper cutout. That’s much less of an issue for me but I cannot live with them not being centered left to right. Finally, the sound is awesome. I have some minor upgrades and are pushing just over 500 hp at the motor. This kit replaced an SLP loudmouth 1 kit and this sounds worlds better and is just as loud other than low rpms at low throttle. You will not be disappointed with the sound of this exhaust and hopefully the fitment was only a problem for me and is the only reason why I’m giving this only 4 of 5 stars.
The quality of the sound is amazing and definitely worth the money, but the hardware leaves a little room for improvement. I had to widen one hole of each included exhaust grommet with a drill to get it to fit on the stock hangers, also had to trim the x pipe 4 inches to fit the mufflers where they could be hung up. Other than that it went smooth and it sounds good. I’d go with spintech again for sure
Got my 05-06 gto cat back kit installed and sounds amazing. Couldn’t be happier. System fit nearly perfect. Only complaint was I didn’t not realize these kits are made to order so took about a week longer than I had originally thought but worth the wait
This is now the 3rd Spintech system I've bought for a GTO due to how incredible these systems sound. Assembly and fitment are great with only minor adjustments needed to ensure proper clearance and alignment. Ron is an absolute pleasure to do business with as well.
Install was straight forward, easy if you have any mechanical ability. Sounds amazing, Deep musclular tone. Only qualm is where there was 2 hangers from factory this system only utilizes one and this causes the tips to hang slightly crooked.. Should be an easy fix thoug. Overall excellent exhaust system!