I hooked up my wastegate yesterday to see how it ran with lower drive pressure, I checked it with compressed air at 20 psi and it leaked a little but functioned ok. Today while pulling a hill I heard a pop and my boost went up to 25psi. Guess the leak got bigger. Anyway anyone know where to get one at a decent price or know how much they cost. Its for a 94 12cm housing.

 

I'd try Cummins.