Cybernations, GReddy, RevHard, and HKS are the major turbo kit makers for the RSX.
Comptech and Jackson Racing are the major supercharger kit makers for the RSX.
Hytech and TODA are the major NA kit makers for the RSX.
However for the base, i'm not too sure how many of those companies make kits. Oh and if you're going with Cybernations, theres a pretty large debate over which engine manager is better - Hondata K-Pro or CN Guardian. I'm not too sure about the pros or cons about those though and i'd def. research taht if I were going FI.
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As far as parts, Hondata will work on the bases because its the same engine as the 02-04 base. Supsension parts are gradually being made....
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