Ease of Install: 60 dollar installation by dealer to keep warranty. took them an hour.
Rear Bumper Type and Fitment: Fits the stock bumper nicely the tip is a little bigger than id like but its still great.
When going full throttle from stop i hear it alot until like 3000 rpm or so then it goes away and i hear it again after about 6500 rpm. inaudible at freeway speed and basically just a low rumble at idle. i love it. sometimes i think my car is faster sometimes i think it isnt. hard to tell when youre talking about tenths of a second