New and looking for some power gain imput

Nismo221

thx, i think i have desided to go with the GTM tt kit. I may just go start for the Stage 4 kit. I think im going to finish it off with a Greddy Ti-C exhaust. But would lightweight pullys and flywheel be a good investment with these and does anyone know of any lightweight driveshafts on the market? And im always open to other engine upgrade suggestions. Im always looking to get the most out of my motor. Well minus spray, i dont want to blow my motor with NOS.

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Stillen Gen 3, Motordyne M370 Intake Manifold,
25 row oil cooler, Z1 test pipes, Greddy Ti-C 70mm dual exhaust, 15mm front/20mm rear spacers, RE-11's, V1 detector, LED interior lights, LED tag lights, Password JDM CF engine and radiator cooling covers.