Engines and Components› Pistons and Piston Rings

Manley Performance

Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.75mm +.25mm Bore 8.5:1 Dish SINGLE PISTON AND RING

$238.79

SKU: M004 612002C-1

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Description

The Manley Performance Platinum Series piston is a high-performance aftermarket component designed for Subaru WRX and STI models with the EJ257 engine. Constructed from 2618 alloy forgings, it features proven cam and barrel skirt profiles and tool steel wrist pins for enhanced durability.

This piston has a 99.75mm bore size and a dish type with a dome volume of 51cc, resulting in a compression ratio of 8.5:1. It is designed for a standard stroke with a compression distance of -22mm and a rod length of 5.137”.

Fitment

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Specifications

BrandManley Performance
Part NumberM004 612002C-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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