the intake manifold and fuel injectors and sensors n stuff is totally differnt from the rb20..so what do i need to change in order for this rb25 to go in the skyline r32.? the guy at the shop said its a headache. i dont have the wiring harness for rb25 will rb20 one work....?

 

you will probably need the 25 wiring loom and 25 ecu or go aftermarket ecu

 

The r32 loom can be adapted to the r33 engine (injector plug), you'll need run an extra power feed for VCT, and run an external VCT controller. Remap the rb20det ecu to run the 25det