Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.5mm STD Bore 8.5:1 Dish Piston Set with Rings

Name: Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.5mm STD Bore 8.5:1 Dish Piston Set with Rings
Brand: Manley Performance
SKU: M004 612000C-4
Price: 950.03 USD
Availability: InStock

$950.03

SKU: M004 612000C-4

In Stock

Ships by Jun 12

Free Shipping

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Description

Designed for enthusiasts who demand durability and power, these forged pistons deliver reliable performance. Featuring a precise 99.50mm bore size and an 8.5:1 compression ratio, the set includes anti-friction coated pistons to reduce wear and improve efficiency. Each kit comes complete with rings, clips, and wrist pins. The forged construction ensures strength and longevity, ideal for drag strip runs or spirited street driving.

Fitment

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

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Specifications

Brand	Manley Performance
Part Number	M004 612000C-4

Videos

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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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