General tip, if you dont know what your talking about keep your mouth shut, you'll sound much smarter, and maybe then people will start to respect you. Stop trying to prove your smarter than every one else, because you're constantly shoving your foot in your mouth.

Google is only as smart as the person using it.

I need a catalytic converter and a bullet muffler for my exhaust. The bus tip does only so much to keep the soot of the rear bumper and the exhaust is a little too loud now that the rest of the car is quiet.