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 of the processing unit is a breeze, with no alteration of the factory wiring loom required for the models listed below. 

This ECU is designed for the EVO 4-8 4G63 engine. 

• Please check your connector matches the header in the listed photo before purchasing.  
• This ECU works for manual transmissions only.  
• Includes onboard 4 bar or 7 bar MAP sensor 
• Most factory features are supported. 
• Check the features tab for I/O input & output expansion options 

Suitable applications for 203-4000 automotive computer unit:  

CN9A Lancer Evolution 4 

CP9A Lancer Evolution 5, 6 & 6.5 (TME) 

CT9A Lancer Evolution 7 

CT9A Lancer Evolution 8 (models with 4-plug ECU only) 

*Some EVO 8’s have a 3 plug ECU. These applications will need the EVO9X Link ECU