Wiseco Audi ADU 2.2L 20V 81.00 mm Bore 32.80 mm CH -21.00 CC Piston Set

Wiseco's Professional Series pistons start with a 2618 aluminum forging, chosen for its improved tensile strength, making these pistons well-built for demanding engine builds. These are designed for the Audi ADU 2.2L 20V engine, with an 81.00 mm bore and a compression height of 32.80 mm. The fully machined crown features precision ring grooves, anti-detonation grooves, and additional features to improve ring seal, all contributing to better performance and durability under heavy load.

For reduced friction and quieter operation, these pistons come with an ArmorGlide skirt coating. This coating also helps resist seizure, which is crucial when you're pushing an engine hard. The forced pin oiling design ensures the piston pin receives adequate lubrication, further enhancing reliability in severe duty applications. These pistons are manufactured in the USA, reflecting a commitment to quality construction for serious racers and builders.

This set includes five pistons, designed to fit your 1992-1994 Audi S4 or 1995 Audi S6. Please note that these pistons are not CARB approved and cannot be shipped to California. If you're rebuilding your top end for heavy or severe duty performance, these Wiseco pistons offer a solid option with features aimed at maximizing both power and longevity.