Description
Will these pistons fit my 2008 Mitsubishi Lancer Evolution X?
These JE Piston sets are custom-designed for the Mitsubishi 4B11T engine, ensuring precise fitment for your Lancer Evolution X.
Do I need special tools to install these pistons?
Professional installation is strongly recommended for these high-performance JE Pistons to ensure optimal engine performance and durability.
JE Piston Sets for the 4-cylinder Mitsubishi 4B11T engine deliver enhanced combustion efficiency for more power, scoring a 9 in Engine Performance. Featuring a custom dome design and construction from 2618 aluminum, these pistons provide robust strength and durability. Experience a significant upgrade in your engine's capabilities with these performance-focused forged pistons.
What Owners Say
Owners and enthusiasts consistently turn to JE pistons when replacing factory Subaru components, which are widely criticized for ringland failures under high boost and aggressive tuning. JE pistons have earned strong trust in the performance community, with builders running them reliably at high power levels—one owner reports running 24psi on 8.2:1 compression with excellent timing tolerance and no issues. They're noted for being quieter than some competing forged options due to their design, and shops specializing in performance builds favor them as their go-to choice. While they do produce more noise than stock pistons (common with all forged designs), JE pistons have established themselves as the proven solution for Subaru owners seeking durability beyond OEM capabilities.
Key Features
- Set of 4 Mitsubishi 4B11T 86.5mm Bore Custom Pistons
- Piston Set
- 2618
- Dome
- 3.405 Bore
- 1.313 CD
- 0.905 Pin
Why Choose the JE Piston Sets -4 Cyl
Delivers precision fitment for your Mitsubishi 4B11T engine, ensuring optimal performance.
Achieves enhanced combustion efficiency with a custom dome design for more power.
Provides robust strength and durability for extreme performance applications.
Maximizes engine reliability under demanding driving conditions.
Who Is This For?
Street Performance — 8/10
Custom dome design enhances combustion for more power.
Engine Performance — 9/10
Custom dome design achieves enhanced combustion efficiency.
Track / Autocross — 7/10
Designed for performance, likely handles track demands.
Racing Competition — 8/10
Premium performance pistons for competitive racing.
Drag Racing — 7/10
Enhanced combustion efficiency supports drag racing needs.
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. These JE Pistons are designed for the Mitsubishi 4B11T engine with an 86.5mm bore. Accurate fitment ensures these custom pistons deliver their intended benefits.
How difficult is the JE Pistons JE Piston Sets -4 Cyl installation?
Professional installation is recommended for these JE Piston Sets -4 Cyl. Confirming with a qualified technician ensures proper setup and maximizes the performance gains from this advanced engine component. Expert installation supports peak engine operation.
What performance improvement does the JE Piston Sets -4 Cyl provide over stock?
Achieving enhanced combustion efficiency with a custom dome design provides more power, scoring a 9 for Engine Performance. This upgrade elevates your engine's output significantly beyond stock capabilities. Experience a tangible boost in power and responsiveness.
Is the JE Pistons JE Piston Sets -4 Cyl worth upgrading from OEM?
Upgrading from OEM is worth it for performance enthusiasts seeking increased engine power and efficiency. The custom dome design achieves enhanced combustion, a key technical reason for superior performance. This provides a significant upgrade in engine capability.
What is the primary material composition of JE Pistons JE Piston Sets -4 Cyl?
These JE Piston Sets -4 Cyl are constructed from 2618 aluminum alloy. This premium material provides robust strength and durability for extreme performance applications. Expect superior resilience and longevity under demanding conditions.
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.
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