Mahle MS Piston Set EJ25 99.75mm Bore with 79.0mm Stroke for Subaru WRX 2.5L

Description

This Mahle MS piston set is designed specifically for Subaru WRX 2.5L engines, featuring a bore diameter of 99.75mm and a stroke of 79.0mm. Crafted from high-quality materials, these pistons provide reliable performance and durability for demanding driving conditions. The set includes four pistons with a 23mm pin and a total displacement of approximately 19.3cc, making it a suitable upgrade for stock applications. The pistons weigh around 0.89 pounds each, ensuring balanced operation within your engine.

The pistons feature advanced coatings, including phosphate treatment, Grafal surface coating, and a hard anodized top ring groove, which enhance wear resistance and reduce friction. These features contribute to improved engine longevity and efficiency. The design includes a compression ratio of 8.5:1, optimized for optimal power output and fuel economy. Each piston is engineered with precision to fit seamlessly into your engine, ensuring proper compression and performance.

Please note that these pistons are not CARB approved and require carb acknowledgment during installation. They are suitable for use in applications where air freight is permitted. As a part of Mahle’s reputable automotive component lineup, these pistons are built to meet high standards of quality and reliability, making them an excellent choice for engine rebuilds or performance upgrades.

Features:

• Bore Diameter: 99.75mm for precise fit in Subaru EJ25 engines

• Stroke: 79.0mm for optimal engine displacement

• Compression Ratio: 8.5:1 for balanced performance and efficiency

• Material: High-quality piston construction for durability

• Coatings: Phosphate, Grafal, and Hard Anodized top ring groove for enhanced wear resistance

• Weight: Approximately 0.89 pounds per piston for balanced engine operation

• Design: Stock rod length with 23mm pin for compatibility and performance

• Displacement: Approximately 19.3cc per piston for reliable power output

• Application: Suitable for Subaru WRX 2.5L engines requiring performance upgrades

• Compliance: Not CARB approved, requires acknowledgment during installation