This is a weekend car, not daily drive.

HKS GT SUPERCHARGER:
Pro:Engine life longer
Street legal in California
Less expensive
Con:Lower potential for horsepower in the future(400 hp MAX)
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Greddy TT(Already bought):
Pro:Higher potential for big horsepower(500-600hp) in the future
Con:Engine life shorter cuz temperature is higher
Street illegal in CaliforniaMore expensive.
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He'll need at least
100 votes within the next
7 days (as of 01/11/10), or else he'll make his own decision.