What I was getting to was trying to eliminate or verify the AP/map as the source of the problem. If you have weird issues on a totally stock ECU, then it's mechanical. And if it runs fine, then either your AP is screwy, or you need to get a 100% Cobb originated map and try again.
Also, give a stock bypass valve a try. The RFL may not be leaking under no load, but if the springs are set incorrectly it will leak boost at a specific pressure... like 9.2 psi. The car will also run better in general. Given a choice between the intake and the BOV, I'd recommend the intake instead, because Cobb has maps for it.
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FWD is the new AWD
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