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Mahle MS Piston Set EJ25 99.75mm Bore 79.0mm Stroke Stock Rod 23mm Pin -22cc 8.5 CR Set of 4

This Mahle MS piston set is engineered for high performance and durability, designed specifically for the Subaru EJ25 2.5L engine family including WRX STI, Forester, and Legacy models. The set includes four forged pistons with a bore size of 99.75mm, a stroke of 79.0mm, and a stock rod length of 130.5mm, featuring a 23mm wrist pin and a piston crown volume of -22cc. With an 8.5:1 compression ratio and a lightweight construction at approximately 413 grams per piston, these pistons offer enhanced strength and thermal stability for boosted or high-output applications.

  • Forged 2618 aluminum alloy construction for superior strength
  • 99.75mm bore diameter with 79.0mm stroke
  • Stock rod length of 130.5mm and 23mm pin diameter
  • -22cc piston crown volume for optimized compression
  • 8.5:1 compression ratio suitable for performance tuning
  • Lightweight design at approximately 413 grams per piston
  • Precision CNC machining for exact fitment and durability

This product has not yet been assigned to any vehicle. We are working to ensure that this changes as soon as possible. Please contact us if you have any questions.

Mahle manufactures a number of performance parts for engines, but their pistons and piston rings are what performance enthusiasts seek from their massive lineup. With forged pistons available for nearly every make and model on the planet, you can’t go wrong with Mahle. Mahle’s history of nearly 100 years in the automotive industry is a testament to their quality. As one of the top 30 largest automotive suppliers in the world, their parts can be found in millions of vehicles.
Contact
Mahle
7670 Hacks Cross Road
38654 Olive Branch
USA

custsrv@mahle.com
https://www.mahle.com/
Responsible person
Streetstylez Ltd. & Co. KG
Heinrich-Lorenz-Str. 2-4
09120 Chemnitz
Germany

info@streetstylez.eu
www.streetstylez.eu
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