Whats the power delivery like compared to Stage 2, is it the same just more of, more towards the top end of the rev range?
As they've been able to work around the fuel cuts the car just keeps going right up to the red line without tailing off. Yes you burn a bit more fuel, but it's an acceptable trade off.
I had stg 1 with the fuel pump and there was minimal change in performance, but stage 2 absolutely changes the urgency and pull right to the top. Beyond 5k pre-pump / stage 2 my car always felt a bit lazy.