i have an 04 zx3 jrsc+bbk and i my car is hella loud. i want to quiet it down a bit without losing hp. i currently have fc race header and full exhaust. im thinking of adding a stealth muffler to the setup. or switching to the svt header,orp and svt exhaust. which do you think would be the most quiet with the most hp? ive heard good things about the svt exhaust system.