Manley MazdaSpeed 3 MZR 2.3L 87.75mm Bore -13.3cc Dome 9.5:1 CR (ED) Pistons w/ Rings - Set of 4

Starting with the 2618 alloy forgings, these Manley pistons are built for serious performance in your 2007-2013 Mazda 3. They feature a specific dome volume of -13.3cc, which helps achieve a 9.5:1 compression ratio, a common target for modified MZR 2.3L engines looking for a balance of power and reliability.

Manley uses proven cam and barrel skirt profiles on these pistons. This design helps them run smoothly against the cylinder walls, reducing wear while still allowing for substantial power gains. The ring lands and grooves are machined to very strict standards, which is crucial for getting a good seal from the piston rings. This improved ring seal means more consistent compression and better overall engine performance. They also come with premium chrome moly wrist pins, which are strong enough for many performance applications.

This set includes four pistons, rings, and wrist pins, making it a complete package for rebuilding or upgrading your engine. Keep in mind that these are not CARB approved and cannot be shipped to California. For optimal installation, always refer to the manufacturer's detailed instructions.