JE Pistons BMW N55B30 84mm Bore 9.5:1 Compression Ratio -14.7 Dish FSR Piston - Set of 6

The JE Pistons BMW N55B30 84mm Bore 9.5:1 Compression Ratio -14.7 Dish FSR Piston is a high-performance forged piston designed specifically for BMW N55B30 engines. Crafted with over 75 years of expertise, JE Pistons offers a premium forged, machined, and engineered component that enhances durability and power output. Made entirely in the USA, these pistons are tailored for racing and high-performance applications, providing an optimal balance of strength and efficiency. The 14.7 dish design and 9.5:1 compression ratio contribute to improved combustion efficiency and power delivery, making them suitable for demanding track or street use. Their forged construction ensures resilience under high-stress conditions, supporting engine longevity and consistent performance.

Designed to fit BMW N55B30 engines with an 84mm bore, these pistons are ideal for enthusiasts seeking a reliable upgrade for racing, tuning, or high-performance builds. They are intended as direct replacements for stock pistons, offering a significant performance boost while maintaining engine integrity. Suitable for use in street, track, or drag racing scenarios, these pistons are engineered for European import engines and sport compact applications. The set of six ensures complete engine coverage, providing all necessary components for a comprehensive upgrade. Proper installation and compatibility with the specific engine model are essential for optimal results.