I've been running one of those nifty ebay HKS 40mm knock-offs. Well it has a 15psi spring in it, and it creeps every now and then. Well the other day it creeped to about 20psi, which scared the crap out of me since I wasn't tuned for that pressure level. Well anyways, my question is if I can hear it leaking which I can, sounds like a slight whistle (YES i've checked for boost leaks) could this be causing a slow spool? Because the turbo usually hits 15lbs at about 4k. Now its a tad belated and I'm thinking its due to the crappy gate on it's way out. Im just looking for some opinions on this, I know you get what you pay for but it's temporary for the moment. Or I could just have a boost leak that I have no idea about. I.E. IC piping...Hmmm.. Any ideas fellas?