Mahle MS Piston Set Subaru 2.5L 99.50mm Bore 79mm Stroke 130.5mm Rod 23mm Pin -22cc 8.5 CR Set of 4

Mahle is a well-known name in engine components, recognized for their extensive experience in developing pistons and rings for both original equipment and high-performance applications. This Mahle MS Piston Set is built for Subaru 2.5L engines, offering a solid upgrade for those looking to rebuild or enhance their engine's performance. With a bore size of 99.50mm, these pistons are designed to fit precisely within the specified cylinder dimensions, ensuring efficient combustion and reliable operation.

These pistons are forged from 2618 aluminum, a material chosen for its strength and durability under high stress and temperature conditions. This construction is crucial for engines that see demanding use, providing a strong foundation for increased power output. The set includes pistons with a -22cc dish volume, contributing to an 8.5:1 compression ratio, which is a common target for modified naturally aspirated or mild forced induction setups. The included 23mm wrist pins and 130.5mm rod length are specific dimensions critical for proper engine assembly and function.

This set is sold as a complete set of four pistons, ready for installation. It's important to note that these pistons are not CARB approved and cannot be shipped to California. For installation, always refer to the manufacturer's detailed instructions to ensure correct assembly and optimal performance of your engine.