JE Pistons Ring Sets 1.0-1.2-2.8-3.386

In this set, you get a complete set of file-fit piston rings designed for a 4-cylinder engine. The top ring is a 0.0394-inch carbon steel nitride ring, paired with a 0.0472-inch ductile iron phosphate second ring. For oil control, you'll find a 0.1102-inch low-tension carbon steel nitride oil ring. These rings are built to create a tight seal in the cylinder, which is crucial for maximizing horsepower by ensuring combustion pressure stays where it belongs.

JE Pistons is known for offering a wide range of sizes and materials to fit many different engines. The file-fit design means you'll need to gap these rings yourself to perfectly match your cylinder bore, a common practice for performance builds to achieve optimal sealing and prevent blow-by. This attention to detail in sealing helps reduce friction and can lead to noticeable gains in power and durability, similar to what top racing teams use.