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Discussion Starter #1
Hey guys

So I have the greddy 18gs and HKS FCON Ecu. I am building boost according to the gauge, but however its taking much longer to build boost and the power feels like 50%. I have no boost leaks, I've smoke tested several times and actually fixed several existing leaks but same issue.

Could it be just a re-tune that's needed? or hot side leak maybe?? Boost is set to 14 psi and builds, but I have to floor it its not giving back the power.

Thanks for the input!
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