Added Gibson SS aluminized with Y pipe. The system gave me a little power. The muffler is round and hangs down about an inch lower than the bottom of the rear diff. I tried to get it to mount closer to the frame but that is as high as it will go. Sounds great outside. It is a little loud for me inside. I do not like the bolt-on tip. I do not know anyone with an armada that has a different exhasut to compair it too. Overall I would give this product a 6 out of 10. I would recommend anyone wanting to put an exhaust on their truck to buy the Y pipe from Gibson and try the Stillen exhaust. The Stillen cat back should bolt on the Gibson Y pipe since they are both 3 inch tubing.