Description
Upgrade your Subaru FA20 engine with the JE Pistons FA20 – 4UGSE 10.5:1 forged piston kit, designed for high-performance applications. Crafted from high tensile strength 2618 aluminum, these pistons are forged and machined entirely in the USA to ensure exceptional durability and performance. Each piston features a proprietary Forged Side Relief (FSR) forging design that minimizes friction and power loss by reducing skirt width and saving weight with a shorter wrist pin, optimizing engine efficiency. The inclusion of an accumulator groove helps manage pressure from combustion gases, reducing ring flutter and enhancing ring seal consistency for sustained power output. Additionally, the pistons are equipped with a skirt coating that reduces friction and wear on piston skirts and cylinder walls while also lowering operating noise, contributing to smoother engine operation. This kit includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings, providing a comprehensive upgrade for your engine. Built specifically for Subaru FA20 engines, these pistons are engineered to deliver optimal performance and longevity in demanding driving conditions such as racing, drifting, or spirited street use. Made in the USA, JE Pistons’ reputation for quality and performance is evident in this precision-engineered piston kit, which is designed to help your engine achieve its maximum potential. Please note that this product is not CARB approved and requires acknowledgment of this status during installation, making it suitable for off-road or racing applications only.
Features:
- Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and shorter wrist pin
- Accumulator groove helps reduce pressure from combustion gases, improving ring seal and power consistency
- Skirt coating reduces friction, wear, and operating noise for smoother engine operation
- Forged in the USA using high-quality 2618 aluminum for high tensile strength and durability
- Engineered specifically for Subaru FA20 engines to optimize performance and longevity
- Includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings for a complete upgrade



























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