should i get the 5% pulley

dru440

Registered User
hey guys im boosting about 12psi max right now, i really want to get my car to boosting 14-15psi max, all the car has done is redone exhaust, with a high flow resonator, cats , and super turbo mufflers, i think 10% would be to much and i just want a lil more get up dont need a race car, will the 5% be perfect for me?
 
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