CP Piston & Ring Single w/ X-Forgings for Acura B18C1 - Bore (81.5mm) - Size (+0.5mm) - CR (12.5:1)

Starting with the X-Forgings, these CP Pistons are built for serious performance in your Acura B18C1. This single piston is designed for an 81.5mm bore and comes at a +0.5mm oversize, meaning it's intended for engines that have already been bored out slightly to refresh the cylinder walls. The 12.5:1 compression ratio is a notable bump over stock, which will help you get more power out of your engine, especially when paired with performance tuning and other modifications.

CP Pistons uses a well-built forging process that creates a strong piston capable of handling the increased cylinder pressures that come with a higher compression ratio. The X-Forgings are a specific design choice by CP that contributes to the overall strength and reliability of the piston, helping to resist flexing under load. This piston is a solid option if you're rebuilding the top end of your B18C1 and looking for a component that can handle the demands of a performance build.

Keep in mind that this piston is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.