I bought a used STS kit and for some reason, there was a 1psi spring in the wastegate. As of right now, I can run 1 psi, and 7psi with the flip of a switch. I want to order the .5 bar (7.25psi) spring and need to know what size wastegate comes with the LS1 package. I want to say 44mm, but I am not sure.

 

Anyone?

 

I think its a 38mm..

 

Thanks. Does anyone else know for sure?