Manley 04+ Subaru WRX STi (EJ257) 100.25mm Bore STD Stroke -17cc Dish

Name: Manley 04+ Subaru WRX STi (EJ257) 100.25mm Bore STD Stroke -17cc Dish
Brand: Manley Performance
SKU: M004 612207C-4
Price: 910.15 USD
Availability: InStock

$910.15

SKU: M004 612207C-4

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Non-Returnable Item

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Moderate — 2–4 hours

Description

Manley Pistons for the EJ257 motor in the 2006-2014 WRX and 2004+ STi models includes a full set of 4 pistons, wrist pins, ring sets, and round wire locks. Features: Pin:Standard .180" Wall, Bore Size:100.25mm (+.75), Rod Length:5.137", Stroke:79mm Standard Stroke (2.5L), Comp Distance:1.209", Dome Volume:-17 cc, Cylinder Head cc:57, Compression Ratio:8.5:1, Piston Type:Dish, Weight:423 Grams. Benefits: Lightweight design with offset wrist pin for quiet start-ups, Higher tension oil rings for improved oil control. Manley products, due to their intended use, are sold without warranty.

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Specifications

Brand	Manley Performance
Part Number	M004 612207C-4

Videos

Building a 500WHP Capable EJ25 to Giveaway!

Subaru STi forged EJ257 motor first start

Differences between Manley's Pistons and Rods with Sport Compact Warehouse.

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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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