Manley Performance
Manley 15+ Subaru FA20 WRX 86.50mm +.5mm Bore 10:1 Dish Piston Set with Rings - 632705C-4
- SKU:
- MAN632705C-4
- UPC:
- 807298102214
- MPN:
- 632705C-4
- Availability:
- Regularly stocked product
Description
Do Manley pistons fit my specific vehicle model?
Manley Piston Sets require confirmation of fitment with your specific vehicle's make, model, and year before purchase.
Can I install these pistons myself?
Installation of Manley Piston Sets is complex and professional installation is strongly recommended for optimal performance.
Manley Piston Sets are engineered with 2618 alloy forgings for unparalleled strength, achieving a score of 9 in racing competition usage. These pistons feature proven cam and barrel skirt profiles and tool steel wrist pins, ensuring superior piston strength to withstand extreme boost and high RPMs for your 4-cylinder engine.
What Owners Say
Owners and enthusiasts consistently praise Manley pistons as well-designed 2618 forgings that rank among the top choices for serious builds, with many builders preferring them over other premium brands. The pistons earn specific recognition for not scoring cylinder walls and for notable weight savings—assemblies can be up to 46 grams lighter than OEM components, which builders consider significant for performance. However, there's honest feedback that the included piston rings can be problematic, becoming too soft to seal properly and potentially causing premature oil consumption. Despite this criticism about the rings, Manley's reputation for listening to the community and improving their products—such as addressing earlier weight concerns—has solidified their standing as a trusted choice for engine builders.
Key Features
- 2618 alloy forgings
- proven cam and barrel skirt profiles
- tool steel wrist pins
- moly skirt coatings
- 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 piston 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 for unparalleled strength under extreme demands.
Racing Competition — 9/10
Engineered for extreme performance demands and reliability.
Street Performance — 8/10
Forged construction and skirt coatings enhance durability.
Engine Performance — 9/10
2618 alloy forgings provide superior strength for high output.
High Speed Desert Running — 8/10
2618 alloy forgings ensure strength under extreme conditions.
Frequently Asked Questions
How do Manley forged pistons improve engine performance?
Forged pistons deliver smoother engine operation and reduced friction for enhanced power. Their 2618 alloy construction achieves a usage score of 9 for "Engine Performance," ensuring superior strength for high output. These pistons transform your engine's reliability under demanding performance conditions.
Are Manley forged pistons compatible with my 4-cylinder engine?
Confirm fitment with your specific vehicle for accurate compatibility. Professional installation is recommended to ensure proper integration and optimal performance of these 4-cylinder piston sets. Achieving a confident and precise engine build is paramount for street or track.
What are the best pistons for track day performance?
Manley forged pistons offer extreme durability for relentless track days. With a usage score of 9 for "Track / Autocross," their 2618 alloy forgings provide unparalleled strength for extreme demands. Experience transformed engine reliability under the most demanding motorsport applications.
What is the recommended installation procedure for these pistons?
Professional installation is recommended for these 4-cylinder forged piston sets. Confirm with a qualified technician to ensure proper fitment and build integrity. This advanced maintenance level ensures optimal performance and longevity of your engine build.
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: |
632705C-4 |
Proposition 65: |
Y |
Case Lot Quantity: |
1 |
Category: |
Engine Components>Piston Sets - Forged - 4cyl |
Universal Fitment: |
Y |
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