tried a wolf ECU on my R33........NOT WASTE TOUR TIME OR MONEY!...... very average ECU Had chris colgrave TRY and fit one on my R33 GTST and is was nothing but trouble. for a plug and play ecu it needed a to modify the chopper wheel or trigger swutch something like that ( as 1 out of 10 skylines might need to do this upgrade........they tell us this after it was purchesed from wolf)
to cut a long story short , they couldn't tune the bloody thing and I was $700 out of pocket for fitting tuning and modifing the extra bits on the car from standard and back again, I ending up sending the ECU back and getting a refund.
WOLF ECU Suck! cheap but crap!
get a Haltech or Altronic ecu.
just my experince with this ECU!!!
Have a Altronic now!