Our signature "Platinum Series" pistons feature 2618 alloy forgings, proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select part numbers. Join the ranks of professional engine builders and tuners who rely on Manley pistons for superior performance and durability.
Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series Pistons. For select SKUs, we offer wrist pin upgrades to 9310 and Turbo Tuff/DLC alloys, providing additional durability.
Exacting Ring Lands and Grooves: We adhere to strict standards for piston ring lands and grooves, resulting in enhanced ring seal and more power.
Cam and Barrel Profiles: Our pistons boast cam and barrel (skirt) profiles that generate substantial power while being gentle on cylinder walls.
Unique Fixturing: Manley's unique fixturing allows for skirt turning and ring groove machining in a single operation, ensuring ultimate ring groove to skirt squareness.
Included:
• Manley Subaru 2.5L EJ257 WRX STi Piston Set - 99.75 mm Bore 1.209 in. CH, -22.00 CC
Features:
• Product Market Sport Compact
• Bore Diameter 99.75 MM
• Compression Height 1.209 IN
• Piston Volume -22.00 CC
• Weight398 GR
• Piston Series Platinum Series
• Product Type Engine Piston Kit
• Piston Quantity4
• Engine Stroke 79.00 MM
• Bore Oversize +0.25 MM
• Piston Head Type Dish
• Compression Ratio 8.50:1 CC
