Scroll Products do an upgraded k04-15, its equivelent to yhe k04-23 turbo. Spools a lot earlier than the old K04. So in short its a hybrid k04 turbo, larger compressor and exducer wheels, and larger inlets and oulets for better flow
As for BHP it was 200 on the k03 map, but when i got it on the k04 map the clutch slipped, hence why i swapped to a stage 3.I am due to get the map finished so will have a proper print out within a week or so.