JE Pistons
JE Pistons SUB STI EJ257/EJ20 Head 99.75mm Bore CR 8.5 Kit Forged Piston Set — Fits Subaru
JE Pistons SUB STI EJ257/EJ20 Head 99.75mm Bore CR 8.5 Kit Forged Piston Set — Fits Subaru
JE Pistons SUB STI EJ257/EJ20 Head 99.75mm Bore CR 8.5 Kit Forged Piston Set — Fits Subaru
JE Pistons SUB STI EJ257/EJ20 Head 99.75mm Bore CR 8.5 Kit Forged Piston Set — Fits Subaru
JE Pistons SUB STI EJ257/EJ20 Head 99.75mm Bore CR 8.5 Kit Forged Piston Set — Fits Subaru
JE Pistons SUB STI EJ257/EJ20 Head 99.75mm Bore CR 8.5 Kit Forged Piston Set — Fits Subaru
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JE Pistons SUB STI EJ257/EJ20 Head 99.75mm Bore CR 8.5 Kit Forged Piston Set — Fits SubaruJE Pistons SUB STI EJ257/EJ20 Head 99.75mm Bore CR 8.5 Kit Forged Piston Set — Fits SubaruJE Pistons SUB STI EJ257/EJ20 Head 99.75mm Bore CR 8.5 Kit Forged Piston Set — Fits SubaruJE Pistons SUB STI EJ257/EJ20 Head 99.75mm Bore CR 8.5 Kit Forged Piston Set — Fits SubaruJE Pistons SUB STI EJ257/EJ20 Head 99.75mm Bore CR 8.5 Kit Forged Piston Set — Fits SubaruJE Pistons SUB STI EJ257/EJ20 Head 99.75mm Bore CR 8.5 Kit Forged Piston Set — Fits Subaru
JE Pistons

JE Pistons SUB STI EJ257/EJ20 Head 99.75mm Bore CR 8.5 Kit Forged Piston Set

SKU: JEP296349

About JE Pistons JE Pistons engineers high-quality automotive parts and ...Read more

Price:
$899.99
8990 ENTRIES10X
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

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About JE Pistons

JE Pistons engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full JE Pistons lineup with fast shipping and expert fitment support — order with confidence.

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JE Pistons Forged Piston Kit for Subaru EJ257 Block w/ EJ20 Head (99.75mm Bore, CR 8.5)

This specialized forged piston kit from JE Pistons is designed for unique Subaru engine builds, specifically pairing an EJ257 block with an EJ20 head. Featuring a 99.75mm bore and a compression ratio of 8.5:1, these pistons are forged in the USA from high-strength 2618 aluminum, ensuring reliability and performance under demanding conditions.

Key Features and Benefits:

  • Specialized Fitment: Engineered for the specific combination of an EJ257 block and EJ20 head, ensuring proper fit and function.
  • High-Performance Material: Constructed from premium 2618 aluminum for superior tensile strength and durability.
  • Optimized Compression: A compression ratio of 8.5:1 is ideal for boosted applications, balancing power and reliability.
  • Reduced Friction: Features the innovative Forged Side Relief (FSR) design to minimize friction, reduce power loss, and contribute to weight savings.
  • Enhanced Durability: Includes skirt coating (application dependent) to reduce wear and noise, while an accumulator groove (application dependent) improves ring seal for consistent power.
  • Complete Kit: Comes with high-quality wrist pins, locks, and JE Pro Seal premium piston rings for a complete installation.
  • USA Quality: Manufactured to the highest standards in the USA.

This JE Pistons kit is perfect for Subaru enthusiasts undertaking custom engine builds requiring specific component matching. Achieve your performance goals with confidence. Explore the full range of performance parts at GGCRACING.

About JE Pistons

JE Pistons engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full JE Pistons lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

JE Pistons Forged Piston Kit for Subaru EJ257 Block w/ EJ20 Head (99.75mm Bore, CR 8.5)

This specialized forged piston kit from JE Pistons is designed for unique Subaru engine builds, specifically pairing an EJ257 block with an EJ20 head. Featuring a 99.75mm bore and a compression ratio of 8.5:1, these pistons are forged in the USA from high-strength 2618 aluminum, ensuring reliability and performance under demanding conditions.

Key Features and Benefits:

  • Specialized Fitment: Engineered for the specific combination of an EJ257 block and EJ20 head, ensuring proper fit and function.
  • High-Performance Material: Constructed from premium 2618 aluminum for superior tensile strength and durability.
  • Optimized Compression: A compression ratio of 8.5:1 is ideal for boosted applications, balancing power and reliability.
  • Reduced Friction: Features the innovative Forged Side Relief (FSR) design to minimize friction, reduce power loss, and contribute to weight savings.
  • Enhanced Durability: Includes skirt coating (application dependent) to reduce wear and noise, while an accumulator groove (application dependent) improves ring seal for consistent power.
  • Complete Kit: Comes with high-quality wrist pins, locks, and JE Pro Seal premium piston rings for a complete installation.
  • USA Quality: Manufactured to the highest standards in the USA.

This JE Pistons kit is perfect for Subaru enthusiasts undertaking custom engine builds requiring specific component matching. Achieve your performance goals with confidence. Explore the full range of performance parts at GGCRACING.

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