Very satisfied with this system. 40 minutes after it arrived, it was installed and I was taking my truck for a test drive. There is a very noticeable improvement in throttle response and overall performance. It was fast and easy to install. It fit perfect and looks great. It also has a mellow sound, which really compliments my trucks 2 1/2" full stainless dual exhaust with magnaflow mufflers. I would recommend it to anyone. Thanks to AutoAnything the price was reasonable as well.