Description
The Link G4 X ECU is an advanced Engine Control Unit specifically designed for the Mazda RX7 FD Series 7 and 8 (13B Turbo). It serves as a powerful tool for tuning and optimizing engine performance, making it an essential component for serious automotive enthusiasts and motorsport professionals.
- Direct plug-in installation into the OEM enclosure, no modification to factory wiring.
- Supports manual transmissions only; compatible with FD3S Series 7 and 8.
- Up to 6D fuel and ignition mapping for precise control.
- Features include precision closed-loop cam control, sequential fuel delivery, and digital triggering.
- Integrated 5D boost control with three switchable tables for versatile performance tuning.
- Includes antilag, launch control, flat shift, and continuous barometric correction for motorsport applications.
- 512 MB of onboard data logging memory for detailed performance analysis.
- Supports various sensor types, including Hall effect and variable reluctance.
This ECU is ideal for various configurations, including naturally aspirated, single, and parallel twin turbo setups, though it does not support sequential control of stock twin turbos. The G4 X ECU enhances tuning flexibility with features like real-time selectable maps and individual cylinder correction, making it suitable for high-boost builds and track applications.
Constructed with robust materials for reliability, the Link G4 X ECU guarantees performance under demanding conditions. For optimal use, ensure your connector matches the specifications before purchasing. A USB tuning cable is included for easy adjustments, and detailed documentation is available through the user manual.







