Fall 2024 - Now includes Electronic Throttle support.  Contact sales for details - a new Option will be added soon!

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. 

Designed for the SR20 engine. This ECU will work with the 64 pin, blue header plug ECU version. 

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

Suitable Applications:  
S13 Silvia / 180SX SR20DET (but not CA18DET) 
S14a Silvia (facelift) SR20DET 
S15 Silvia SR20DET 
S15 Silvia SR20DE

G4X PlugIn Key Features (where applicable):

• Up to 6D fuel and ignition mapping
• Precision closed loop cam control (four cam, independent control)
• Sequential fuel delivery
• Digital triggering, all OEM patterns
• OEM idle hardware supported
• 5D boost control with three switchable tables
• Motorsport features - antilag, launch, flat shift
• Continuous barometric correction (on board)
• CAN port
• QuickTune - automated fuel tuning
• Individual cylinder correction
• USB tuning cable included
• Stats recording into on-board memory
• Gear compensations for spark, boost and fuel
• Real time selectable dual fuel, ignition and boost maps
• Sync and crank sensors can be a combination of Hall effect, variable reluctance or optical
• Boost control referenced to gear, speed or throttle position
• 512 mega bytes data logging memory
• Staged injection
• Knock with "windowing"

I/O Expansion Options:
The following expansion connector inputs/outputs are provided: 
Expansion connector 1  
Gnd                Sensor Ground Only  
+5V Out        Low Current +5V Supply 
DI6                Digital Input 
DI7                Digital Input 
An Volt 5        Analog 0-5V input 
An Volt 6        Analog 0-5V input 
An Temp 3        Temperature sensor input 
An Temp 4        Temperature sensor input 

Expansion connector 2 
Ign 5                Ignition 5 Auxiliary output 
Ign 6                Ignition 6 Auxiliary output 
Ign 7                Ignition 7 Auxiliary output 
DI 8                Digital Input 
Volt 8                Analog 0-5V input 
Volt 9                Analog 0-5V input 
Volt 10                Analog 0-5V input 
Volt 11                Analog 0-5V input