Even if those are flywheel #s they are very high!
My eisenmann race on first 3 runs lost a few hp..then let car cool (maybe ecu adjusting?) Next 2 sets of runs had a gain of around 4-6 whp
13 E92 M3 ZCP
Stock w/Rs3 - WSIR 1:33:9 / BW C13 2:03:6 / ACS 1:56:7
KW CS w/Rs3 - WSIR 1:32:8 / BW C13 1:59:2 / ACS 1:55:1
APR Wing/Rs3 - WSIR 1:30:9 / BW C13 1:57:7