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Manley 04+ Subaru WRX/STI EH257 99.75mm Bore +.25mm Size 8.5:1 Dish Extreme Duty Piston Set - Manley Performance 632202CE-4
Manley 04+ Subaru WRX/STI EH257 99.75mm Bore +.25mm Size 8.5:1 Dish Extreme Duty Piston Set - Manley Performance 632202CE-4
Manley 04+ Subaru WRX/STI EH257 99.75mm Bore +.25mm Size 8.5:1 Dish Extreme Duty Piston Set - Manley Performance 632202CE-4
Manley 04+ Subaru WRX/STI EH257 99.75mm Bore +.25mm Size 8.5:1 Dish Extreme Duty Piston Set - Manley Performance 632202CE-4
Manley 04+ Subaru WRX/STI EH257 99.75mm Bore +.25mm Size 8.5:1 Dish Extreme Duty Piston Set - Manley Performance 632202CE-4
Manley 04+ Subaru WRX/STI EH257 99.75mm Bore +.25mm Size 8.5:1 Dish Extreme Duty Piston Set - Manley Performance 632202CE-4
Manley 04+ Subaru WRX/STI EH257 99.75mm Bore +.25mm Size 8.5:1 Dish Extreme Duty Piston Set - Manley Performance 632202CE-4
Manley 04+ Subaru WRX/STI EH257 99.75mm Bore +.25mm Size 8.5:1 Dish Extreme Duty Piston Set - Manley Performance 632202CE-4
Manley 04+ Subaru WRX/STI EH257 99.75mm Bore +.25mm Size 8.5:1 Dish Extreme Duty Piston Set - Manley Performance 632202CE-4
Manley 04+ Subaru WRX/STI EH257 99.75mm Bore +.25mm Size 8.5:1 Dish Extreme Duty Piston Set - Manley Performance 632202CE-4
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Manley 04+ Subaru WRX/STI EH257 99.75mm Bore +.25mm Size 8.5:1 Dish Extreme Duty Piston Set

MAN632202CE-4
807298088112
Forged Piston Kit
4 Units In Stock
Engine, Manley Performance
$ 1,022.95 $ 941.12
$ 941.12

The Manley Performance forged piston kit identified by manufacturer part number 632202CE-4 is engineered for a measured performance-engine assembly. Final compatibility depends on the exact engine, mating components, and verified dimensions, not a similar product title alone.

Key Features

  • Tool Steel Wrist Pins: 0.866 x 2.433-inch diameter pins resist fatigue and bending under high cylinder pressures.
  • Precision Ring Grooves: Accommodates 1.2 1.5 2.8mm rings with accumulator groove to control blow-by and seal under boost.
  • Compression height 30mm stroke 79mm rod length 130mm designed for stock EJ257 block and head configurations.
  • 2618 T6 Alloy Forgings: High-temperature strength handles extreme boost and RPM for long-term engine life in turbocharged applications.
  • Hone cylinders to 99.75mm bore with Nikasil-compatible stones for proper clearance 0.0035-0.0045-inch.
  • Forged construction proven in 1000-plus horsepower EJ257 builds worldwide.

Fitment

Years Make Model Application
2004-2014 Subaru Impreza Verify exact engine and component dimensions
2015-2021 Subaru WRX Verify exact engine and component dimensions

Specifications

Brand Manley Performance
Manufacturer Part Number 632202CE-4
Product Type Forged Piston Kit
Fitment Type Vehicle Specific
Condition New
Bore Diameter 99.75 mm
Compression Ratio 8.5:1

What's Included

One new Manley Performance forged piston kit in the exact quantity and configuration stated in the specifications. Bearings, rings, pins, locks, fasteners, and installation hardware are included only when expressly listed for this part number.

About Manley Performance

Manley Performance engineers connecting rods, pistons, crankshafts, valves, valvetrain components, and related hardware for professional street, racing, and forced-induction engine builds.

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Frequently Asked Questions

Will Manley 632202CE-4 fit my 2004-2014 Subaru Impreza?
That vehicle range is listed, but compatibility also depends on the exact engine code, bore, stroke, mating components, clearances, and current Manley application notes.

Are rings, pins, and locks included with this piston product?
Included hardware varies by exact part number. Confirm ring, wrist-pin, lock, coating, quantity, and upgraded-pin details in the current Manley package listing before machining.

What must the machine shop measure before assembly?
Verify finished bore, piston-to-wall clearance, ring end gaps, deck height, piston-to-valve clearance, wrist-pin fit, bearing clearances, and final compression ratio.

Installation Instructions

Use the current Manley instructions for part number 632202CE-4 and the engine builder's measured assembly specifications. Verify material, orientation, machining, clearances, fastener procedure, lubrication, balance, torque or stretch values, and break-in before operation.

Engine

Engine

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Manley Performance

Manley Performance

Shop Manley Performance pistons, connecting rods, crankshafts, valves, valvetrain components, piston rings, wrist pins, and engine hardware by exact manufacturer part number and verified application. Choosing the Correct Manley Performance Component Performance-engine parts must be selected from measured specifications. Match the exact Manley part number, engine code, bore, stroke, journal, pin, fastener, material, and package configuration before ordering. Confirm the exact engine family and current Manley application notes Match all critical dimensions and mating components Verify material, coating, fastener, and intended power level Confirm whether bearings, rings, pins, locks, or hardware are included Use professional machining, balancing, and measured assembly clearances Related Engine Collections Pistons Connecting Rods Crankshafts Piston Rings Frequently Asked Questions How do I confirm a Manley engine component fits my build?Match the exact part number, engine code, bor...

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