Best Header/Cat-Back Combo

[djXternal]

Hey Guys I'm Looking To Upgrade My '99 Eclipse GS Exhaust System This Includes Header And Cat-Back Exhaust... Right Now I'm Looking At Apexi And Greddy... What Are your opinions?

 

[97cLyPsE]

Hey Guys I'm Looking To Upgrade My '99 Eclipse GS Exhaust System This Includes Header And Cat-Back Exhaust... Right Now I'm Looking At Apexi And Greddy... What Are your opinions?

i think a 4-1 header design will help you out a bit, i have a greddy 4-1 header and a magnaflow cat back.

 

[GSGoinFast]

if your going to get the header downpipe combo and a cat back exuast, you might as well get a hi flow cat then, upgrade your exaust completely.

 

[djXternal]

Ok well I want to get the best performance possible... So if someone could give me a website or list of names to the parts that I'd want to upgrade the whole exhaust system to its best