This CP Piston & Ring Set is designed for 14+ Audi/VW 2.0L TSI engines with a bore size of 83mm and a compression ratio of 9.5:1. The set includes four forged aluminum pistons, four matching rings, four wrist pins, and four pin locks. The pistons feature a high-strength design with a hard anodized top ring groove and a double spiro-lock groove for increased durability. The rings are made from cast iron and feature a chrome-faced top ring for improved sealing. The set also includes a set of performance-grade piston rings for improved oil control. This set is designed to provide increased power and torque while maintaining reliability and durability.