Tomei High Performance Timing BeltThe SUBARU EJ20 25 engine was designed with a lengthy 227mm timing belt that stretches acorss the entire length of the horizontally opposed engine, powering the water pump in the middle. Occasionally in the stock timing belt's case, the belt becomes stretched. offsetting the valve timing of in worst cases, the engine suffers major catastrophic failures. Tomei's EJ20 25 timing belt is highly resistant against this stretching issue and especially to