Manley 98+ Subaru WRX (EJ205) STD Stroke 92mm STD Bore 8.5:1 Dish Extreme Duty Piston Set with Rings

This Manley Extreme Duty Piston Set includes four forged pistons, complete with rings and tool steel wrist pins, ready for your 1998 and newer Subaru WRX with the EJ205 engine. These pistons are designed for standard stroke and bore, featuring a dish top that results in a compression ratio of 8.5:1, making them a solid choice for builds looking for improved performance and durability over stock components.

Manley uses domestic 2618 alloy forgings for these pistons, which are known for their exceptional strength and ability to handle demanding engine conditions. The pistons feature proven cam and barrel skirt profiles, engineered to generate substantial power while minimizing wear on your cylinder walls. You'll also find exacting standards applied to the ring lands and grooves, which is crucial for achieving a better ring seal and ultimately, more power. Manley's unique machining process ensures the ring grooves are perfectly square to the piston skirt, contributing to overall engine health and performance.

Included with these pistons are premium chrome moly wrist pins, offering robust durability. For those pushing their engines even harder, Manley offers upgrades to 9310 or Turbo Tuff/DLC alloys for even greater strength. These pistons are a popular choice among professional engine builders and tuners who trust Manley for reliable performance. Please note that this piston set is not CARB approved and cannot be shipped to California.