JE Pistons
JE Pistons SUB STI EJ257 100mm Bore CR 8.5 KIT Set of 4 Pistons - 291062
- SKU:
- JEP291062
- UPC:
- 291062
- MPN:
- 291062
- Availability:
- Regularly stocked product
Description
What is the proper installation method for JE Pistons?
Professional installation is strongly recommended to ensure optimal performance and longevity of your JE Piston Sets - Forged - 4cyl.
How does the proprietary forged design benefit my engine?
The proprietary forged design minimizes friction and maximizes power output, achieving a top score of 9 for overall engine performance.
JE Piston Sets - Forged - 4cyl deliver maximum power and efficiency with a usage score of 9 for Engine Performance. Forged in the USA from 2618 aluminum, these pistons boast proprietary designs for reduced friction and enhanced durability. Experience confident, high-demand performance for your 4-cylinder engine.
What Owners Say
Engine builders and enthusiasts consistently praise JE pistons for their proven reliability and performance, with many shops running them exclusively for client builds. Owners report these pistons effectively unleash an engine's potential, particularly in naturally aspirated and boosted applications. The quality and craftsmanship stand out among competitors, though some note JE pistons can run slightly louder than OEM due to their forged design and piston-to-wall clearances. Performance-focused builders appreciate their durability when properly tuned, with the hybrid models gaining particular interest for high-horsepower street applications. JE's reputation remains strong among the enthusiast community as a trusted choice for serious engine builds.
Key Features
- Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin
- Accumulator groove (depending on application) helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent power
- Skirt coating (depending on application) reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise
- Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
- Designed specifically for each engine and use application to provide optimized
Why Choose the JE Piston Sets -4 Cyl
Delivers maximum power and efficiency by minimizing internal friction.
Achieves consistent, reliable power delivery through superior ring seal.
Provides a quieter, smoother engine operation with reduced wear.
Transforms your engine's resilience for extreme performance demands.
Who Is This For?
Street Performance — 8/10
Forged design minimizes friction for maximum power output.
Track / Autocross — 8/10
High tensile strength for demanding performance applications.
Drag Racing — 8/10
Engineered for minimized friction and maximum power.
Racing Competition — 8/10
High tensile strength for high-demand performance.
Engine Performance — 9/10
Proprietary design minimizes friction, maximizes power output.
Fuel Efficiency — 5/10
Minimized friction may improve efficiency slightly.
Frequently Asked Questions
Will the JE Pistons JE Piston Sets -4 Cyl fit my vehicle?
Confirming fitment with your specific vehicle is essential for optimal performance and compatibility with these JE Piston Sets -4 Cyl. Always consult with a qualified technician or refer to detailed fitment guides to ensure a precise match for your automotive application.
How difficult is the JE Pistons JE Piston Sets -4 Cyl installation?
Professional installation is recommended for the JE Piston Sets -4 Cyl to ensure proper integration and performance. This advanced maintenance level requires specialized knowledge and tools for accurate setup by a qualified technician.
What performance improvement does the JE Piston Sets -4 Cyl provide over stock?
Achieving maximum power output is a key outcome of these JE Piston Sets -4 Cyl, scoring an 8 for Engine Performance usage. Their proprietary forged design minimizes internal friction for a substantial enhancement over stock components.
What materials are the JE Pistons JE Piston Sets -4 Cyl constructed from?
Forged in the USA using 2618 aluminum, these JE Piston Sets -4 Cyl are built for high-demand performance applications. This material choice provides the necessary high tensile strength to withstand extreme engine conditions effectively.
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: |
291062 |
Proposition 65: |
Y |
Case Lot Quantity: |
1 |
Category: |
Engine Components>Piston Sets - Forged - 4cyl |
Product Level: |
Premium Performance |
Street Performance: |
8/10 |
Track / Autocross: |
8/10 |
Drag Racing: |
8/10 |
Racing Competition: |
8/10 |
Engine Performance: |
9/10 |
Fuel Efficiency: |
5/10 |
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