Ok. Received my new turbo kit yesterday and will begin the install tomorrow. The kit has no 02 bung installed and the pictures off their site (I will post a complete review upon completion) shows the bung installed at the header collector. The system runs the Dynojet PC5 with larger injectors, and I plan to run the auto tune module, which means I need 2 bungs. One for the auto tune, one for the AFR gauge. I've seen that other kits (K&T) run a bung AFTER the turbo. I thought it had to be fairly close to the exhaust ports to maintain enough heat, but don't know. Any suggestions as to where to weld in the two bungs would be appreciated. I plan to run a Turbosmart gated controller to allow on the fly switching of the boost level and fuel maps. 7 psi for the wife and kids, 14 psi when the need for speed takes over my soul! Any knowledgable input on anything turbo would be appreciated.