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Manley 04+ Subaru WRX STi (EJ257) 83mm Stroker 99.5mm STD Bore 9.8:1 Dish Piston Set with Rings

SKU: MAN622100C-4

Pistons

MAN Piston Sets - 4 Cyl...

Manley 04+ Subaru WRX STi (EJ257) 83mm Stroker 99.5mm STD Bore 9.8:1 Dish Piston Set with Rings

SKU: MAN622100C-4

Pistons

MAN Piston Sets - 4 Cyl...

A$1,411.23
Limited Availability from MFR Limited stock available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical orders of this part. This item is not held in our own warehouse, and availability and release timing may vary depending on manufacturer stock movements and processing at the time of ordering.
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Description

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.

Part Type

Engine Piston Set

Data: v4.2 - Upd: 2026-10-13 17:07:38

Features

  • 2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.
  • Cam and Barrel Profiles: Our pistons boast cam and barrel (skirt) profiles that generate substantial power while being gentle on cylinder walls.
  • 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.
  • 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.

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
622100C-4
Product Attributes - Part Type
Pistons
Product Attributes - Product Line
Manley Platinum Series Pistons
Product Attributes - UPC
807298068114
Product Attributes - Piston Rings Included
No
Product Attributes - Bore (in.)
3.917 in.
Product Attributes - Bore (mm)
99.500mm
Product Attributes - Engine Stroke Type
Stock
Product Attributes - Piston Style
Dish, with three valve reliefs
Product Attributes - Piston Material
Forged aluminum
Product Attributes - Compression Height (in.)
1.130 in.
Product Attributes - Piston Head Volume (cc)
+14.00cc
Product Attributes - Wrist Pin Style
Press-fit or floating
Product Attributes - Wrist Pin Retainers Included
Yes
Product Attributes - Wrist Pin Included
Yes
Product Attributes - Piston Ring Thickness
1.20mm x 1.20mm x 2.00mm
Product Attributes - File Fit
No
Product Attributes - Gapless
No
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a set of 4.
Product Attributes - Notes
Designed to work with EJ257 Subaru WRX Sti engines.

Reference Information

Brand Name/s Manley Performance
StreetFX SKU man622100C-4
SFX Item ID 4060130
Supplier Item Code 4060130
Manufacturer SKU 622100C-4
Manufacturer UPC 807298068114
Alternative References (EJ257), 83mm, 99.5mm

Compatibility

Application Data
  • MakeSUBARU
    Beginning Year2004
    Ending Year2010
    Engine TypeH4
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc

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