I have a 98 maxima se with a stillen rear exhaust. This is my question. If I get all the other pipes like the Y-pipe and the B-pipe and cat converter, which will be better. To have a stock Rear exhaust and a aftermarket B-pipe or to have a stock B-pipe and a aftermarket exhaust. I like the sound on my car right now but was wondering if it will bee loud with a aftermarket B-pipe and Y-pipe