don't think the controller is cheap tho but from what i've heard it absolutely transforms the way the 4WD R32 drives!
....Which is exactly why I suggested it
Around 6-700 squid I think, but one of the few simpler mods to do to a R32 and with very rewarding returns in the joy department.
It's all very well considering expensive turbo's and superchargers etc to willy-wave the power but useless without driveability/handling.
APS (Ed) are good peeps to ask more detail about it.