[Angus]

I have an aw11 4agze with oversize crank pulley which usually hits 11.5psi on my boost guage WOT in 5th gear. However after a recent track day (where it performed awesome ALL day) it started only boosting half, EXACTLY half?!

so now, if i floor it, it shoots up to about 6-7psi on the guage then after one second levels off to about 5 psi

so i know your thinking intercooler pipe leak right ?

i took off the intercooler and the pipes from the SC to the throttle body all look sweet, so what else could it be ???

cheers guys