Supertech Subaru WRX / EJ20 92mm Bore Piston Rings - 1.2x3.27mm / 1.2x3.7mm / 2.5x2.8mm - Set of 4

This set includes four complete sets of Supertech piston rings, specifically sized for Subaru WRX engines with the EJ20 block and a 92mm bore. Each set contains the three necessary ring types: a 1.2mm top ring, a 1.2mm second ring, and a 2.5mm oil control ring, all designed to fit the specific groove dimensions of your pistons.

These rings are essential for proper engine sealing, ensuring that combustion pressure stays where it belongs and oil stays out of the combustion chamber. When rebuilding or refreshing your EJ20 engine, using well-made piston rings like these helps restore compression and maintain oil control, which is critical for engine performance and longevity. The specific dimensions are designed to match the factory specifications for the 92mm bore EJ20, making them a direct replacement for your worn-out rings.