Not saying the Stillen kit is great or anything since I don't have it, but when they say 500hp, they mean bhp so if you get 425whp, you are hitting their rating, though it seems like most don,t hit that either.
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Works Emotion CR Ultimate - FI CBE w/ 18" resonators - Ecutek - eibach sways - Quaife - FI LTH w/race cats - kw v3 - spl - Topgunz SC - 488whp 398trq
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