JE Pistons 11.5:1 S54B32 Piston Kit Set of 6 for BMW M3 Z3 Z4

Designed to enhance engine performance, this set of six pistons is forged from high-quality 2618 aluminum, ensuring the tensile strength necessary for high-demand applications. Each piston is engineered specifically for its intended use, providing exceptional durability and performance tailored to the unique requirements of your engine.

The proprietary Forged Side Relief (FSR) design minimizes friction and power loss due to its reduced skirt width, while the shorter wrist pin contributes to an overall weight reduction. This precision engineering also includes a skirt coating that decreases friction and wear between the piston skirts and cylinder walls, effectively lowering operational noise.

Additionally, the incorporation of an accumulator groove in select applications mitigates pressure from combustion gases, resulting in improved ring seal and reduced ring fluttering for more consistent power delivery. This product comes complete with high-quality wrist pins, locks, and JE Pro Seal premium piston rings, all manufactured in the USA.

• Forged from high-tensile strength 2618 aluminum
• Optimized design tailored for specific engine applications
• FSR design minimizes friction and power loss
• Skirt coating reduces friction and operational noise
• Accumulator groove enhances ring seal and power consistency
• Includes wrist pins, locks, and premium piston rings
• 100% made in the USA

• 2001-2006 BMW M3 Base
• 2001-2002 BMW Z3 M Coupe
• 2001-2002 BMW Z3 M Roadster
• 2006-2008 BMW Z4 M Coupe
• 2006-2008 BMW Z4 M Roadster