1: it sounds great at all RPM and engine load .real aggressive
2: it was really easy to install; did it myself
now for the drawback:
it's so loud, that I can't hear what the car is doing. For example: I think I hear a rear wheel bearing noise but I can't be sure because of the exhaust noise. I know all I have to do is raise the car and spin the wheel but that involves work.
My concern is this: What else am I not hearing