JDM NISSAN RB25DET ENGINE S2 R33 Skyline 2.5L GTS SERIES 2 MOTOR ECU.my mate has done neo into a s15 before without too much hassle, the trickiest part is the wiring unless your are a genius. you will need both wiring looms, rb25 ecu or after market ecu, rb gearbox or some sort of adapter plate, custom engine mounts/modified k frame, custom gearbox mounts. And the Ground pin on the sensor can go to Pin 4 or any other Signal ground on the Aux The Signal pin on the Sensor can go to Pin 2 or any other AVI pin on the Aux. The 5v pin on the sensor can go to Pin 1 or any +5v pin on the Aux out of the ecu. If im trying to wire up my 5 bar map sensor for my rb25 to my platinum pro.