Manley 2015+ Subaru WRX FA20F 86.1mm +.1mm Bore 10:1 Dish Piston Set of 4 (E/D)

If you're rebuilding the engine in your 2015 and up Subaru WRX with the FA20F engine, a solid set of pistons is crucial for handling increased power. This set from Manley Performance is built to handle demanding builds, offering a 10:1 compression ratio with a dish design that works well for forced induction setups.

These pistons are forged from 2618 alloy, a strong material that Manley sources domestically. This forging process creates a piston that's much stronger than cast aluminum, making it ideal for engines that will see higher boost levels or more aggressive tuning. Manley also applies a moly skirt coating on these specific pistons, which helps reduce friction and wear against the cylinder walls, especially during the critical break-in period and under heavy load. The cam and barrel skirt profiles are carefully shaped to minimize cylinder wall wear while still allowing the piston to generate power efficiently. You'll also find exacting standards for the ring lands and grooves, which are essential for a good seal and maximizing the power your engine makes.

This set includes four pistons, each measuring 86.1mm with a +.1mm bore size, and comes with tool steel wrist pins. These are a popular choice among professional engine builders and tuners who need reliable components for high-performance Subaru builds. Please note that these pistons are not CARB approved and cannot be shipped to California.