John,
I stand corrected. That is really....quiet for venting wastegate to atmosphere. I remember the same Tial open wastegate used to sound like 747 taking off. Extremely loud, drove it for a week, then had Sakis routed/plumbed the dumbtube onto the downpipe.
Let me know if you like to dyno. Chance to recheck the A/F/Boost, and Sakis can check and see if there is anything that could had caused the boost creep the other day.
