all i know is as far as the KB kits for the c5's go they werent performing like they stated. lots of restrictions in the intake i believe, its been reworked twice i believe and still wasnt performing. lots of KB kits sold and i have yet to see a track proven car, or one hitting 700+whp on forged motor.
personally i wouldnt buy a KB due to horrible customer service. no e-mail replies and contacting them by phone they show no interest in helping if they dont have a kit available already for the car they wont help. thats why whipple and maggie's will always be first choice, customer service OWNS.
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