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Mahle PowerPak Plus Pistons - Boxed Strut (EJ25)
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Mahle PowerPak Plus Pistons - Boxed Strut (EJ25)
MAHLE Motorsport Subaru Forged PowerPak+ piston kits offer superior reliability and performance, letting you take performance to the next level. Subaru pistons are designed by our Motorsport division with 2618 alloy. PowerPak Plus pistons include a hard anodized top ring groove for extreme duty applications.
Features
- Slipper Skirt Style Forgings: strong, lightweight, low drag forging superior to the traditional full round design.
- Phosphate Coating: helps prevent microwelding in the ring grooves and pin galling.
- Grafal® Anti-Friction Skirt Coating: reduces drag, scuffing, friction, cylinder bore wear, and reduces piston noise.
- Hard Anodized Top Ring Grooves (PowerPak+ Piston Kits): extra protection against ring groove microwelding for extreme duty applications.
- 2618 Aluminum Alloy: whether building a street engine or an all out race engine
- Boxed Strut Construction (Available for the WRX 2.5L STi only): added strength for extreme duty applications.
**Special Order**
