I have a revo stage 2 k03 GTI at the moment and Im looking at K04 upgrade options. Im thinking about changing to the k04 turbo and s3 injectors. But I dont want to change the pump and add more pressure to the cam, I have had zero problems with my fuelling and hopefully can keep it that way. It seems that most people change their pump during the upgrade, but since S3 shares the same pump, I would be happy with the power levels provided by the original pump. Does revo have sw for K04 conversion that can be used without the HPFP upgrade? So this would be pretty close to the K04 motor stage 2 file. Thanks for any info!