4G91 can fit....but need some modification coz bore not the same....dun ask me how......but there is 1 fella in this forum tat has done it b4.....forgot his nick though....
What is the best methods to remove the cut off? The "Z" moved up to 180kmh in a split second... I reckon that theres ECU remapping at N1 racing which removes the cut off and improve throttle response...