CP Piston & Ring Set for Audi/VW 2.0L TFSI - Bore (83.5mm) - Size (+1.0mm) - CR (9.5) - Set of 4

This is a set of four forged pistons and rings from CP Pistons, specifically made for the Audi and Volkswagen 2.0L TFSI engine. These pistons are designed to be 83.5mm in bore size, which is 1.0mm larger than the factory specification, and they feature a 9.5:1 compression ratio. If you're rebuilding the engine in your performance-oriented Audi or VW, especially if you're looking to handle more power or refresh a worn-out engine, these pistons are a solid choice.

CP Pistons are well-known in the performance world for their robust construction. These are forged from high-strength aluminum alloy, which makes them significantly stronger and more durable than cast pistons. This strength is crucial for engines that are modified for higher horsepower, boosted applications, or just pushed hard on a regular basis. The 9.5:1 compression ratio is a common target for modified TFSI engines, offering a good balance between power output and pump gas compatibility, though tuning will be essential to take full advantage of them. The included rings are designed to seal properly with these specific pistons, helping to maintain compression and control oil consumption.

When installing these pistons, remember they are an oversize part, meaning your engine block will need to be bored and honed to the 83.5mm dimension to ensure a proper fit and seal. This is a standard procedure for engine rebuilds using oversized pistons. It's always recommended to consult the manufacturer's installation instructions and work with a qualified engine builder to ensure these components are fitted correctly for optimal performance and longevity.