CRTD4 Twin-Channel Diesel Tuning Box

The TDI Tuning CRTD4 is a twin-channel digital diesel tuning box designed to increase power, torque, and fuel economy in diesel engines. It works by adjusting fuel injection parameters and engine timing in parallel with your vehicle's ECU. The tuning box comes with a vehicle-specific wiring loom for easy installation, typically taking 10-20 minutes, and includes pictorial instructions.

The product is DPF, ECU and EGR safe, dyno measured and proven, and traceless once removed. It is also start/stop compatible, has cold start protection, offers greater throttle response, and removes hesitation and flat spots. The CRTD4 is re-programmable for future vehicles with the purchase of a new harness and map file, and is compatible with both manual and automatic transmissions.