You can get a adjustable one from Kennedy Diesel. I have never ran one. I just moved my wastegate line from the out of the turbo to intercooler tube right before the intake. Gained me about 2 psi. On a good hook, drag pass or the dyno I see around 32 to 34 psi. My turbo would make 24 psi with the stock tune. Always been a over acheiver. 
__________________ The BIG STICK
02 GMC Crewcab long bedLB7 ZF6
Alive with EFI Live
Macs Dual Disk Pulling Clutch, Holley HP150 lift pump and Wix Pre OEM filter, Summit Racing 4" exhaust, K@N FIPK, Autometer Gauges, Westin step bars, Rhinolined bed and rockers, 265 Goodyear Wrangler Silent Armour, Custom traction bars, pulling hitch, 10AN fuel pickup, Lift pump and filter mount. |