What do you man by "best" though? What one person considers as the perfect part doesn't necessarily mean that others agree. Well, if it was up to me...
-headers - ?
-spoiler - OEM
-CAI - ?
-springs - TEIN coilovers, or Eibach Sportlines
-exhaust - something Greddy (I like Greddy's overall sound the best)

-headers - ?
-spoiler - OEM
-CAI - ?
-springs - TEIN coilovers, or Eibach Sportlines
-exhaust - something Greddy (I like Greddy's overall sound the best)