I've been searching for about 2 days and I have not been able to find the solution. The car is stock other than a downpipe and intake. The first turbo boosts right up to between 9 and 10 psi and then at about 4000 rpm right as the second turbo actuates the car falls right on its face. The car will rev sitting still right up to the redline, but in second gear when I go to boost it falls on its face every time the second turbo is to actuate, it feels like its hitting a fuel cut but I dont know waht it could be. Any Ideas?
Thanks guys

 

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