Easy to install. Affordable. Reliable.   G4X PlugIn ECUs offer the latest in engine management technology, designed to easily maximize the potential from your car.   This ECU fits inside the factory OEM enclosure. Installation is a breeze, with no alteration of the factory wiring loom required for the models listed below.  The NGTTX is Designed to suit the grey plug RB (typically neo) engine.   Please check your connector matches the header in the listed photo before purchasing.   This ECU works for manual transmissions only.   Most factory features are supported.  Note : This ECU does not currently output the 4WD signal required for proper 4wd operation in 4WD Stageas and Skylines.  Note : Models fitted with factory traction control - TCS will no longer function, the TCS and slip lamps will be illuminated. Check the features tab for I/O expansion options. This ECU will need a modification before E-Throttle is usable.  Suitable applications:  RB20DE NEO, RB25DE NEO and RB25DET NEO in R