Mahle MS Piston Set Ford Focus ST Ecoboost 2.0L 88mm Bore 83mm Stroke 156mm Rod -7cc 9.4 CR Set of 4

Mahle is well-known for making solid engine components, and this MS piston set is a prime example of their work for performance applications. If you're rebuilding or upgrading the engine in your Ford Focus ST with the 2.0L Ecoboost, these pistons are built to handle the demands of a performance build. They feature an 88mm bore and are designed to work with an 83.1mm stroke and a 155.87mm connecting rod, with a 22.5mm wrist pin.

These pistons are forged from 2618 aluminum, a strong material commonly used in high-performance applications because it can withstand higher temperatures and pressures. The -7cc dish volume contributes to a 9.4:1 compression ratio when used with the specified stroke and rod length, which is a good balance for boosted engines looking for improved power without sacrificing too much drivability. Each piston weighs 383g, helping to keep rotating assembly balance in check. This set includes four pistons, ready for your engine build.

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