Ive been looking to put an aftermarket exhaust on my ls and i know borla and magnaflow are the two big names when it comes to exhaust's on the LS and just wanted to know which one is a better exhaust, what gives the best performance increase, and what sounds the best out of the two

BORLA but this is a matter of opinion thats all. If I could I would make a sound clip but I cant sorry. Good luck with your decision.

-Scott-