TODA Timing Chain Tensioner. The Toda heavy duty timing chain tensioner replaces the standard tensioner which can move under high stress conditions possibly resulting in engine damage. The Toda tensioner removes this possibility and has been proven in endurance racing conditions. It prevents the possibility of damage during high load or high RPM conditions and keeps accurate cam timing in all conditions. Originally designed for N+ endurance racing engines. Suitable for all K-series K20 engines K20A, K20Z found in the Civic EP3, FN2, FD2 and Integra DC5.