how come i was(now too) able to go up to 10 psi even without the boost controller? was the wastegate being set before then? (btw, this greddy kit was used. i bought it for $800. the previous owner had to swap a gs-r engine so he sold it to me. was it possible that he has adjusted the wastegate?) if he really did, how do i set it back to the stock 5.5psi? maybe this is the reason why my boost controller cant be set lower than 9psi since the wastegate was being set too high!
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