Is my wastegate shot?

[OmgAwd]

I know that the stock boost gauge does nothing. I stated that.

[OmgAwd]

A wastegate on a car under boost will open earlier than it will on the bench do to backpressure pushing the flapper open. The backpressure essentially makes it act like a weaker spring.

When you put aftermarket exhaust on a DSM it makes the car run more boost, sometimes to the point of uncontrollable boost creep.

Thanks.

I'm picking up a boost gauge tomorrow.