CP Piston & Ring Set for Acura/Honda K20A/A2/A3 - Bore (89mm) - Size (+3.0mm) - Compression Ratio (F

If you're rebuilding the engine in your 2002-2006 Acura RSX for higher performance, a set of forged pistons like these from CP Pistons is a critical component. These pistons are designed to handle increased cylinder pressures and temperatures that come with modified K20A, K20A2, or K20A3 engines. They replace your stock pistons, offering an improved foundation for boosted or naturally aspirated builds aiming for more power.

CP Pistons are well-known for their forged aluminum construction, which is significantly stronger and more durable than cast aluminum found in factory pistons. This strength is essential for preventing piston failure under demanding conditions. These particular pistons feature an 89mm bore size, which is a +3.0mm overbore compared to stock, allowing for increased displacement and potential power gains when paired with other engine modifications. The specific compression ratio is noted as 'F', indicating it's designed for a performance application where tuning will be used to optimize fuel and air mixture for the desired output.

This set includes the pistons and the necessary rings to complete the installation. It's important to note that these pistons are not CARB approved and cannot be shipped to California. For a successful engine build, ensure you have the correct machine shop services to prepare your engine block for the overbore and that you follow the manufacturer's recommended installation procedures and break-in process.