Engines and Components› Pistons and Piston Rings

Manley Performance

Manley 04+ Subaru WRX/STi (EJ257) 83mm Stroke 99.75mm +.25mm Size B 8.5:1 CR ED Piston (Single)

$299.17

SKU: M004 632402CE-1

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Non-Returnable Item
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Description

The Manley Performance Extreme Duty Piston Set is a high-performance engine component designed for the 2004 Subaru WRX. These pistons are crafted from 2618 alloy forgings, offering exceptional strength and thermal stability for demanding conditions.

Featuring meticulous attention to ring lands and grooves for a precise seal, these pistons also incorporate unique cam and barrel skirt profiles. Included are premium chrome moly wrist pins, with optional upgrades available.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandManley Performance
Part NumberM004 632402CE-1

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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