Hello, I have had my 02 GS3 for over 6 months now have done some mods, L tune s/s, audio system, tint, wheels, etc. but nothing for performance! This motor is pretty stout but need some additional hp for sure. Bascially i am looking at what N/A mods have proven to produce real hp, intake is def. something i think is usless because the factory one is usually a good design. anyways what exhaust systems are providing good power, headers producing something reasonable for the price, and probally some kind of ECU upgrades? anyways i appreciate the input as I am still new to the GS community! Thanks!

-George

P.S. I def. am going to keep this car N/A with no type of F/i ( including nitrous)

 

Well, if you want to keep it simple.

Intake/Header/Exhaust along with the Apexi SAFC

**Dont forget to get an O2 Simulator when you get header.

 

Any specific manufacturers that are producing constant gains? in the 350z realm alot of parts either dont make any power, lose power, then there are the few that produce decent gains. just trying to learn. thanks!