Manley Performance Platinum Series Piston for Subaru WRX STI EJ257 - 99.5mm Bore, Grade A

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. Manley Piston Single, PIST-SUBARU 99.5mm/GRADE A.

• 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.
• 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.
• 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.
• 2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.

Designed for high-performance tuning and durability, the Manley Performance Platinum Series piston for Subaru WRX STI EJ257 features a 99.5mm bore and Grade A quality. Crafted from domestic 2618 alloy forging, this piston offers exceptional strength and resilience under demanding engine conditions. Its cam and barrel (skirt) profiles are engineered to generate significant power while maintaining gentle interaction with the cylinder walls, promoting long-term engine health. Each piston incorporates meticulously machined ring lands and grooves, adhering to strict standards to ensure optimal ring seal and enhanced power output. The inclusion of premium chrome moly wrist pins provides reliable durability, with optional upgrades to 9310 or Turbo Tuff/DLC alloys for even greater strength. Unique fixturing during manufacturing allows for precise skirt turning and ring groove machining in a single operation, ensuring perfect squareness and consistent quality. This piston is an ideal choice for professional engine builders and tuners seeking reliable, high-performance components for Subaru EJ257 engines. Please note, this part is not CARB-approved and requires carb acknowledgment, making it suitable for off-road or racing applications. With its advanced design and premium materials, the Manley Platinum Series piston delivers superior performance and durability for serious automotive enthusiasts.

Features:

• 2618 alloy forging for superior strength and durability

• Cam and barrel (skirt) profiles designed for high performance and cylinder wall friendliness

• Exacting ring lands and grooves for enhanced sealing and power

• Chrome moly wrist pins, with optional upgrades to 9310 or Turbo Tuff/DLC alloys for increased durability

• Unique fixturing process ensures precise ring groove to skirt squareness and machining accuracy

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: false
Units Per Sku: 1