CP Piston & Ring Set for Subaru BRZ FA20 - Bore (86.5mm) - CR (12:5:1) - Set of 4

This is a set of four forged pistons and rings from CP Pistons, specifically made for the Subaru BRZ FA20 engine. These pistons are designed to replace your factory ones, offering an improved compression ratio of 12.5:1 and a bore size of 86.5mm. This setup is ideal for builders looking to increase the performance potential of their FA20 engine, whether for track use or a high-performance street build.

CP Pistons are well-known in the performance engine building world for their robust construction. These pistons are forged from high-strength aluminum alloy, which gives them a solid foundation to handle increased cylinder pressures and temperatures that come with higher compression and performance tuning. The included rings are also selected to work seamlessly with the pistons, ensuring a good seal for optimal power and efficiency. The 86.5mm bore size is a common upgrade for the FA20, allowing for a slight increase in displacement while maintaining good wall strength. This set is designed as a direct replacement for your existing pistons, simplifying the rebuild process for experienced mechanics.

When rebuilding your FA20 engine with these pistons, it's important to ensure all supporting components are up to the task. This includes proper tuning, upgraded fuel systems, and potentially stronger connecting rods to match the increased demands. Always refer to the manufacturer's installation instructions for precise details on fitting these pistons and rings to your engine.