Hey mate your car looks really good with the volks. The 17's actually suit it very well.

Your intake is probably making your car run rich. You need to purchase something like flash pro to adjust the AFR. Our FN2's do not take well to modifications like the other k20 models. induction kits seem to loose power unless you have them mapped to suit mods.

Have you looked into coilovers yet. I was thinkin about BC racing BR coils. They seem to get a very good review and are at an affordable price.