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  • Mahle MS Piston Set Subaru 2.5L 99.75mm Bore 79mm Stroke 130.4mm Rod 23mm Pin -22cc 8.5 CR Set of 4
Mahle MS Piston Set Subaru 2.5L 99.75mm Bore 79mm Stroke 130.4mm Rod 23mm Pin -22cc 8.5 CR Set of 4
Mahle MS Piston Set Subaru 2.5L 99.75mm Bore 79mm Stroke 130.4mm Rod 23mm Pin -22cc 8.5 CR Set of 4
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Load image into Gallery viewer, Mahle MS Piston Set Subaru 2.5L 99.75mm Bore 79mm Stroke 130.4mm Rod 23mm Pin -22cc 8.5 CR Set of 4
Load image into Gallery viewer, Mahle MS Piston Set Subaru 2.5L 99.75mm Bore 79mm Stroke 130.4mm Rod 23mm Pin -22cc 8.5 CR Set of 4

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Mahle MS Piston Set Subaru 2.5L 99.75mm Bore 79mm Stroke 130.4mm Rod 23mm Pin -22cc 8.5 CR Set of 4

MHL930285027
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Mahle MS Piston Set Subaru 2.5L 99.75mm Bore 79mm Stroke 130.4mm Rod 23mm Pin -22cc 8.5 CR Set of 4
Description

The Subaru WRX 2.5L STI, Forester, Legacy Piston Set (99.75mm x 30.7mm CH) is designed for high-performance builds, particularly for those looking to enhance their turbocharged Subaru engine. These pistons offer a compression ratio of 8.5:1, ideal for applications requiring robust performance under higher boost pressures. The pistons are made from 4032 aluminum, known for its strength, heat resistance, and ability to withstand high engine temperatures and pressures. This set is engineered for optimal performance with a 79.0mm stroke, 130.5mm rod length, and -19.3cc dish to improve combustion efficiency.

Key Features:

  • 99.75mm Bore & 79.0mm Stroke: Increases engine displacement, ideal for performance or turbocharged builds that require greater power.
  • 130.5mm Rod Length: Optimizes engine geometry for better durability and smoother power delivery.
  • 8.5:1 Compression Ratio: Designed for high-performance, turbocharged engines, providing the ideal balance between power and durability under heavy boost.
  • -19.3cc Dish: Helps achieve optimal combustion efficiency, making the pistons ideal for forced induction setups.
  • 4032 Aluminum Construction: A durable and heat-resistant material that performs well under high stress, making it perfect for performance applications.
  • 23mm Pin Size: Engineered for a secure fitment in Subaru engines.
  • Weight: 401g per piston.

Specifications:

  • Bore Size: 99.75mm
  • Stroke: 79.0mm
  • Rod Length: 130.5mm
  • Pin Size: 23mm
  • Compression Ratio: 8.5:1
  • Piston Dish: -19.3cc
  • Material: 4032 Aluminum
  • Weight: 401g per piston
  • Set of: 4 Pistons
  • Application: Subaru WRX 2.5L STI, Forester, Legacy (Ideal for high-performance, turbocharged applications)

Applications:

This Subaru WRX 2.5L STI, Forester, Legacy Piston Set is ideal for those looking to build or upgrade a high-performance engine, especially for turbocharged setups. Whether you’re working on a WRX, STI, Forester, or Legacy, these pistons will increase displacement and support more power under boost, making them perfect for both street and track applications.

REVIEWS

JK

"I used these pistons in my Legacy build with a turbocharger, and they’ve been performing great. The 8.5:1 compression ratio is just perfect for handling boost. Highly recommend these pistons for serious engine builds!"

John K.

Los Angeles, CA

ES

"I installed these pistons in my Forester with a big turbo, and the performance gains were massive. They’re strong and durable under high boost, exactly what I needed for my performance build."

Eric S.

Portland, OR

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