Link ECU G4X Nissan S13 & S14 PlugIn ECU — S13X

Upgrade your Nissan S13, 180SX or early S14 with the Link ECU G4X S13X PlugIn ECU. This advanced standalone engine-management system installs inside the factory ECU enclosure and connects to the original wiring loom, giving you complete control over fuel, ignition, boost and advanced motorsport functions.

Designed for compatible CA18DET and SR20DET engines using the 76-pin blue ECU connector, the S13X delivers modern engine management without requiring a complete standalone wiring harness.

FREE Link ECU USB Tuning Cable — $70 Value

Every S13X purchased from Kugan Tuning includes a compatible Link ECU USB tuning cable at no additional cost. Connect your laptop directly to the ECU for configuration, diagnostics, data logging and professional tuning.

Why Choose the Link G4X S13X?

• Designed for compatible Nissan CA18DET and SR20DET applications
• Supports factory 76-pin blue ECU connectors
• Installs inside the factory OEM ECU enclosure
• Connects to the original engine wiring loom
• No complete standalone wiring harness required
• Choice of onboard 4-bar or 7-bar MAP sensor
• Advanced fuel, ignition and boost control
• Launch control, anti-lag and flat-shift capability
• Expandable inputs and outputs
• CAN communication
• 512 MB of onboard data-logging memory
• FREE Link ECU USB tuning cable included—a $70 value
• FREE Kugan Tuning remote setup support included—a $297 value

Suitable Applications

• Nissan S13 with a CA18DET engine
• Nissan 180SX with a CA18DET engine
• Nissan S14 pre-facelift with an SR20DET engine
• Manual-transmission vehicles only
• Vehicles with the factory 76-pin blue ECU connector

Important Compatibility Information

• Compatible with manual-transmission vehicles only
• Requires the 76-pin blue ECU connector
• Compare your factory ECU connector with the connector shown in the product photos before ordering
• Compatibility depends on the factory ECU connector and pinout—not only the vehicle model or engine
• Applications with the 64-pin blue ECU connector require a different Link ECU PlugIn model
• Select the appropriate onboard 4-bar or 7-bar MAP sensor when ordering
• Electronic-throttle operation requires an ECU modification before it can be used
• Most factory vehicle functions are supported, but availability can vary by model and configuration
• Modified vehicles and engine swaps may require additional wiring, sensors and configuration
• Professional installation and calibration are strongly recommended

G4X Engine-Management Features

• Up to 6D fuel and ignition mapping
• Sequential fuel injection
• Precision closed-loop camshaft control where applicable
• Digital triggering with support for OEM trigger patterns
• OEM idle-control hardware support
• 5D boost control with three switchable tables
• Boost control based on gear, vehicle speed or throttle position
• Launch control
• Anti-lag
• Flat-shift control
• QuickTune automated fuel tuning
• Individual-cylinder correction
• Gear-based fuel, ignition and boost compensation
• Real-time selectable fuel, ignition and boost maps
• Continuous onboard barometric correction
• Staged injection
• Knock control with configurable knock windows
• Hall-effect, variable-reluctance and optical trigger-sensor support
• CAN communication
• Onboard statistics recording
• 512 MB of onboard data-logging memory

What’s Included

• Link ECU G4X Nissan S13X PlugIn ECU
• Selected onboard 4-bar or 7-bar MAP sensor
• FREE Link ECU USB tuning cable—a $70 value
• FREE Kugan Tuning remote setup support—a $297 value

FREE Remote Setup Support — $297 Value

Purchase your Link ECU from Kugan Tuning and receive complimentary remote setup support to help prepare the ECU and vehicle for startup and professional tuning.

Remote setup support includes:

• Remote ECU connection and setup assistance
• Basemap selection guidance
• Initial ECU configuration assistance
• Startup configuration review
• Sensor and input verification
• Guidance preparing the vehicle for professional tuning

This support helps identify configuration and sensor problems early, reducing unnecessary troubleshooting and wasted dyno time.

Custom remote tuning and dyno tuning are not included unless separately purchased. Successful startup and vehicle operation depend on correct compatibility, installation, wiring, mechanical condition and ECU calibration.