CP Piston & Ring Set for Audi/VW 2.0L TFSI - Bore (83.5mm) - Size (+1mm) - CR (9.5) - Set of 4

If you're rebuilding the engine in your Audi or Volkswagen with the 2.0L TFSI engine, this set of four forged pistons and rings from CP Pistons is a solid choice for a performance build. These pistons are designed to be 83.5mm in bore diameter, which is 1mm larger than stock, and feature a 9.5:1 compression ratio. This specific sizing and compression ratio are often chosen when rebuilding an engine that has already been bored out or when aiming for a specific performance target.

CP Pistons are well-known in the performance world for their strong construction. These are forged pistons, meaning they start as a solid block of aluminum that's heated and forced into shape under extreme pressure. This process creates a much denser and stronger grain structure compared to cast pistons, making them more resistant to the high pressures and temperatures found in performance applications. The included rings are essential for proper sealing between the piston and cylinder wall, which is critical for both power and engine longevity. This set is intended for a complete engine rebuild where the cylinders will be honed or bored to match the piston size.

When installing these pistons, it's important to follow the manufacturer's recommended clearance and lubrication procedures. Because these are an oversized piston, the engine block cylinders will need to be machined to the correct 83.5mm bore size. This is a job best left to a professional machine shop to ensure accuracy. This set includes all four pistons and their corresponding ring sets, ready for installation into your rebuilt 2.0L TFSI engine.