Hello all:

I have a 2003 S2K with a Greddy Turbo Kit on it. I'm definitely interested in more boost and more power. That said, tomorrow I am getting a boost controller installed.

Other than the turbo kit and exhaust, my car is desperately in need of more aftermarket power parts.

I can't claim to know much about aftermarket parts, and for that reason I am posting my question to those more informed!

What can I buy to increase power?

 

Your power options are pretty limited with the greddy kit. Have you read:
https://www.s2ki.com/forums/index.php?showtopic=647911
and
https://www.s2ki.com/forums/index.php?showtopic=705184

Much more info to be found in the FI forum. Search around.

 

Thanks, I'll take a look. Appreciate the help.

 

Looks like it's time for a new turbo kit!

 

I have upgraded the greddy kit almost to the point where it is not a greddy kit any more... I have changed all the charge piping to 2.5", 750 RC injectors, gt3076 turbo, 3" downpipe, and now have a pfab manifold coming and adding a 3mm HG, keep an eye on the official gt30 greddy upgrade thread.. I will be posting the results there within the next month or so.

 

Why don't you list the parts you have so far, cause if you are stock and a greddy kit you do have some room to have a bit more fun.

 

The only thing that I have powerwise besides the turbo kit is an HKS exhaust.

From what I've read on the FI Forum, there's not much left to do...unless I want to start modifying the Greddy Kit.

 

high flow cat or testpipe (with a ported WG)

 

Well boost controller as you noted and a better exhaust would help, you could also add meth injection for more aggressive tuning.
Dyno

 

Get a better ecu and retune. Boost the piss out of it!