Manley Performance

Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257

Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257
Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257
Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257
Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257
Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257
Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257
Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257
Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257
Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257
Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257
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Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257
Manley Performance

Manley Forged Piston Set - 99.50mm STD Bore 8.5:1 Dish — Fits 2004+ Subaru WRX/STI EH257

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SKU: MAN632200CE-4
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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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Product Details

Product Description
Part Numbers
Sizing & Fit

About Manley Performance

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

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Manley Extreme Duty Forged Piston Set for 2004+ Subaru WRX/STI (EH257)

Elevate your Subaru WRX/STI's engine capabilities with this Manley Extreme Duty forged piston set. Engineered for the 2004 and newer WRX/STI models equipped with the EH257 engine, this set features pistons with a 99.50mm standard bore and an 8.5:1 compression ratio, incorporating a dish top for optimal performance tuning.

Engineered for High Performance

  • 2618 Alloy Forgings: Constructed from robust domestic 2618 alloy, ensuring exceptional strength and longevity under extreme conditions.
  • Chrome Moly Wrist Pins: Includes premium Chrome Moly wrist pins as standard. Optional upgrades to 9310 and Turbo Tuff/DLC alloys are available for enhanced durability.
  • Superior Ring Seal: Meticulously machined ring lands and grooves guarantee an enhanced ring seal, translating to increased power and efficiency.
  • Power-Optimized Profiles: Features advanced cam and barrel (skirt) profiles designed to maximize horsepower while protecting cylinder walls.
  • Precision Manufacturing: Utilizes Manley's unique fixturing process for skirt turning and ring groove machining in one operation, ensuring perfect squareness and reliability.

This complete forged piston set is essential for Subaru WRX/STI owners seeking to push the limits of their engine's performance. Experience the difference that precision engineering makes.

Find your Manley Performance piston set at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Manley Performance

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

Watch in action

Manley Extreme Duty Forged Piston Set for 2004+ Subaru WRX/STI (EH257)

Elevate your Subaru WRX/STI's engine capabilities with this Manley Extreme Duty forged piston set. Engineered for the 2004 and newer WRX/STI models equipped with the EH257 engine, this set features pistons with a 99.50mm standard bore and an 8.5:1 compression ratio, incorporating a dish top for optimal performance tuning.

Engineered for High Performance

  • 2618 Alloy Forgings: Constructed from robust domestic 2618 alloy, ensuring exceptional strength and longevity under extreme conditions.
  • Chrome Moly Wrist Pins: Includes premium Chrome Moly wrist pins as standard. Optional upgrades to 9310 and Turbo Tuff/DLC alloys are available for enhanced durability.
  • Superior Ring Seal: Meticulously machined ring lands and grooves guarantee an enhanced ring seal, translating to increased power and efficiency.
  • Power-Optimized Profiles: Features advanced cam and barrel (skirt) profiles designed to maximize horsepower while protecting cylinder walls.
  • Precision Manufacturing: Utilizes Manley's unique fixturing process for skirt turning and ring groove machining in one operation, ensuring perfect squareness and reliability.

This complete forged piston set is essential for Subaru WRX/STI owners seeking to push the limits of their engine's performance. Experience the difference that precision engineering makes.

Find your Manley Performance piston set at GGCRACING.

Product Details

Product Description

About Manley Performance

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

Watch in action

Manley Extreme Duty Forged Piston Set for 2004+ Subaru WRX/STI (EH257)

Elevate your Subaru WRX/STI's engine capabilities with this Manley Extreme Duty forged piston set. Engineered for the 2004 and newer WRX/STI models equipped with the EH257 engine, this set features pistons with a 99.50mm standard bore and an 8.5:1 compression ratio, incorporating a dish top for optimal performance tuning.

Engineered for High Performance

  • 2618 Alloy Forgings: Constructed from robust domestic 2618 alloy, ensuring exceptional strength and longevity under extreme conditions.
  • Chrome Moly Wrist Pins: Includes premium Chrome Moly wrist pins as standard. Optional upgrades to 9310 and Turbo Tuff/DLC alloys are available for enhanced durability.
  • Superior Ring Seal: Meticulously machined ring lands and grooves guarantee an enhanced ring seal, translating to increased power and efficiency.
  • Power-Optimized Profiles: Features advanced cam and barrel (skirt) profiles designed to maximize horsepower while protecting cylinder walls.
  • Precision Manufacturing: Utilizes Manley's unique fixturing process for skirt turning and ring groove machining in one operation, ensuring perfect squareness and reliability.

This complete forged piston set is essential for Subaru WRX/STI owners seeking to push the limits of their engine's performance. Experience the difference that precision engineering makes.

Find your Manley Performance piston set at GGCRACING.

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