CP Piston & Ring Set for Audi/VW 1,8L 20 Valve - Bore (83.0mm) - Size (+2.0mm) - CR (9.5) - Set of 4

CP Pistons is well-known for making strong, reliable internal engine components, and this forged piston and ring set is a prime example of their work. This set is specifically made for Audi and Volkswagen 1.8L 20-valve engines, offering an updated solution for rebuilding or performance builds. The pistons are forged from high-strength aluminum, a process that creates a denser, more durable material compared to cast pistons. This makes them better suited to handle the increased pressures and temperatures found in modified or high-performance engines.

This particular set features a bore size of 83.0mm and is 2.0mm oversize, meaning it's intended for engines that have already been bored out to accommodate this larger size. The compression ratio is set at 9.5:1, which is a common and versatile ratio that balances power output with pump gas compatibility for many applications. This set includes all four pistons and their corresponding rings, ensuring you have everything needed for a complete cylinder replacement. Remember that these pistons are not CARB approved and cannot be shipped to California.