You're gonna learn the cold hard truth here soon... there is no such thing as a "drop in performance gain" in an ej25 such as ours. Most people go.the ej20 swap route if they're really dying for the HP. a few popular things tho to give it a little more pep consist of: ej22 heads? Cams to give it a little more low end, snorkus delete and CAI(although it doesn't do much), and headers and exhaust to really bring.out that low scooby rumble
Most 2nd Gen owners(as far as I know) stick to suspension mods. Help it grab around those corners better than in already does.
Either way... if you wanna make a 2nd Gen LGT race car.. you're gonna need alot of dedication and $$$$$ lololol I found this out the hard way.
Edit: but yes as the man above me said, I highly suggest reading the stickies at the top of the page... lots of REALLY useful knowledge in there. Its a good base for deciding what you really wanna do with your car