CP Piston & Ring Set for Subaru BRZ FA20 - Bore (86mm) - CR (10.0) - Set of 4

If you're rebuilding the engine in your Subaru BRZ FA20, especially if you're looking to handle more power or are dealing with worn-out original pistons, a set of high-performance forged pistons like these from CP Pistons is a solid choice. These pistons are built to withstand the increased stresses of a performance engine build, offering a significant upgrade over cast aluminum pistons. They are designed with a specific 86mm bore and a 10.0:1 compression ratio, which is a popular choice for many naturally aspirated or lightly boosted builds, aiming for a good balance of power and drivability.

CP Pistons are well-known in the performance world for their robust construction. These pistons are forged from high-strength aluminum alloy, a process that aligns the grain structure of the metal, making them much stronger and more resistant to deformation under extreme heat and pressure compared to cast pistons. This strength is crucial for maintaining consistent performance and reliability when you're pushing your engine harder. The set includes four pistons, rings, and wrist pins, providing a complete package for replacing your engine's pistons. The 10.0:1 compression ratio is a common target for tuners, offering a noticeable bump in power without requiring extreme fuel octane in most naturally aspirated applications, and it also works well with moderate boost levels.

When installing these pistons, it's important to ensure your engine block is properly machined to the correct bore size and finish, and that your connecting rods are in good condition. Proper assembly and attention to detail during the engine build process are key to realizing the full potential and longevity of these performance components. Remember that this piston set is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed installation instructions for specific requirements and torque specifications.