Supertech Subaru WRX EJ20 92.00mm Bore Piston Rings - 1.2x3.27mm / 1.2x3.7mm / 2.5x2.8mm - Set of 4

These Supertech piston rings are built to the exact 92.00mm bore size for Subaru EJ20 engines. The ring set includes a specific combination of ring thicknesses: 1.2mm for the top ring, 1.2mm for the second ring, and 2.5mm for the oil ring, with corresponding groove widths of 3.27mm, 3.7mm, and 2.8mm. This precise sizing is crucial for proper sealing between the piston and cylinder wall, which directly impacts engine performance and oil consumption.

When you're rebuilding the top end of your EJ20, getting the piston rings right is key. Supertech is a well-known name for engine components, and this set is made to fit your Subaru's specific bore size. Proper ring tension and sealing help maintain compression, prevent blow-by, and keep oil from entering the combustion chamber. This set is designed to work with pistons for a 92.00mm bore, ensuring a tight seal for a healthy engine.

This set contains four complete sets of rings, enough for one engine. Please note that these rings are not CARB approved and cannot be shipped to California.