Engines and Components› Pistons and Piston Rings
Manley Performance
Manley 04+ Subaru WRX/STI EH257 99.50mm Bore STD Size 8.5:1 Dish Piston Set - Single Piston
SKU: M004 632200C-1
Advanced — 4+ hours
Description
Key features include exacting ring lands and grooves for improved sealing and power, as well as unique cam and barrel profiles for substantial power gains while protecting cylinder walls. The piston also utilizes unique fixturing to ensure ultimate ring groove to skirt squareness. Chrome moly wrist pins are included as standard.
Fitment
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Specifications
| Brand | Manley Performance |
| Part Number | M004 632200C-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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