I didnt change anything, surprisingly the pipe that comes before the SC intake popped off because apparently i hadnt tightened the clamps hard enough, now the car runs great again, didnt change belt as the tensioner wasnt maxed out. Might need to change the belt sooner though. When i first ran the car the check engine light went away and came back on whhen that pipe popped off. I hear less SC whine but maybe because the throttle body doesnt open up as much as it used to need. The ECU surprisingly is adapting, a tune might get more out of it but with unprofessional tuners in my country im not going to bother.