Manley Performance
Manley 04+ Subaru WRX/STI EH257 99.50mm Bore STD Size 8.5:1 Dish Piston Set - 632200C-4
- SKU:
- MAN632200C-4
- UPC:
- 807298085876
- MPN:
- 632200C-4
- Availability:
- Regularly stocked product
Description
What is the difference between forged and cast pistons?
Forged pistons, like these Manley Performance sets, offer superior strength and durability compared to cast pistons for extreme performance applications.
How do I ensure my pistons are the correct size for my engine?
Confirm fitment with your specific vehicle before installation to guarantee proper bore size and optimal performance from your new pistons.
Manley Performance Piston Sets - Forged - 4cyl are engineered with 2618 alloy forgings for unparalleled strength and reliability, scoring a 9 in track and drag racing usage. Featuring proven cam and barrel skirt profiles and tool steel wrist pins, these pistons deliver extreme durability. Trust Manley for robust engine components that excel under the most demanding motorsport applications.
What Owners Say
Owners and enthusiasts consistently praise Manley pistons as top-tier 2618 forgings preferred for serious builds, with many builders noting their excellent design and significant weight savings—up to 46 grams lighter than OEM assemblies. The pistons earn specific recognition for not scoring cylinder walls, a critical advantage during high-performance operation. However, some users report concerns about the included piston rings becoming too soft over time, potentially leading to seal issues and premature oil consumption. Manley has shown responsiveness to community feedback, addressing earlier complaints about excessive weight in newer production runs. These pistons have earned their place among trusted names like Wiseco and CP in the performance building community.
Key Features
- 2618 alloy forgings
- proven cam and barrel skirt profiles
- tool steel wrist pins
- moly skirt coatings on select part numbers
- Chrome Moly Wrist Pins
- 9310 and Turbo Tuff/DLC alloys
Why Choose the MAN Piston Sets - 4 Cyl
Delivers extreme durability for relentless track days and street abuse.
Achieves smoother engine operation and reduced friction for enhanced power.
Provides superior strength to withstand extreme boost and high RPMs.
Transforms your engine's reliability under demanding performance conditions.
Who Is This For?
Track / Autocross — 9/10
2618 alloy forgings offer extreme strength and reliability.
Drag Racing — 9/10
2618 alloy forgings handle extreme performance demands.
Racing Competition — 9/10
Engineered for unparalleled strength under extreme demands.
Street Performance — 8/10
Forged construction provides enhanced durability for performance.
Engine Performance — 9/10
2618 alloy forgings ensure strength and reliability.
Frequently Asked Questions
What are the best pistons for extreme track use?
Forged 2618 alloy pistons deliver extreme durability for relentless track days and street abuse. Manley pistons score a 9/9 for Track/Autocross usage due to their unparalleled strength under extreme demands. These pistons transform your engine's reliability under the most demanding performance conditions.
How do I ensure these Manley pistons fit my specific 4-cylinder engine?
Confirming fitment with your vehicle is essential for optimal performance and installation. Always consult with a qualified technician to verify compatibility with your specific engine build and requirements. This ensures a precise and effective upgrade for your vehicle.
What is the installation process for these forged pistons?
Professional installation is recommended to ensure the correct fitment and optimal performance of these forged pistons. Engaging a qualified technician guarantees proper setup and integration with your engine's existing components. This approach maximizes the benefits of the advanced engineering.
Is upgrading to Manley forged pistons worthwhile for street performance?
Upgrading to Manley forged pistons offers superior strength and reduced friction for enhanced power and smoother engine operation. The forged construction provides enhanced durability, scoring an 8/9 for Street Performance usage. This upgrade transforms your engine's reliability for demanding street applications.
What makes Manley forged pistons so strong?
Manley pistons are engineered with 2618 alloy forgings, providing unparalleled strength and reliability. This material choice enables them to withstand extreme boost and high RPMs, scoring a 9/9 for Engine Performance. This robust construction ensures superior performance for demanding motorsport applications.
Additional Resources
Important Notices
⚠️ CARB Notice: This product is NOT legal for street use in California under CARB (California Air Resources Board) regulations. For off-road or race use only.
⚠️ Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Additional Information
CARB: |
This product is not CARB Legal and not for sale in California |
Clearance Item: |
N |
MPN: |
632200C-4 |
Proposition 65: |
Y |
Case Lot Quantity: |
1 |
Category: |
Engine Components>Piston Sets - Forged - 4cyl |
Universal Fitment: |
Y |
Product Level: |
Premium Performance |
Track / Autocross: |
9/10 |
Drag Racing: |
9/10 |
Racing Competition: |
9/10 |
Street Performance: |
8/10 |
Engine Performance: |
9/10 |
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