JE Pistons BMW S50B30 FSR KIT - Set of 6 Pistons

This kit gives you a complete set of six JE Pistons with their FSR forging design, specifically made for the BMW S50B30 Euro engine. These aren't just any pistons; they're built using a proprietary forged side relief (FSR) design. This means they have a reduced skirt width and a shorter wrist pin, which helps cut down on friction and power loss while also saving weight. This is a big deal when you're pushing an engine hard.

JE Pistons makes these right here in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is exactly what you need for high-demand performance applications. They're designed specifically for the S50B30 engine to give you the best combination of durability and performance. Depending on the specific application, you might also get an accumulator groove to help manage combustion gas pressure, improving ring seal and keeping power consistent. Some applications also include a skirt coating to further reduce friction and wear on the piston skirts and cylinder walls, which can also lead to quieter operation.

When you open the box, you'll find everything you need to get these pistons installed: the six pistons themselves, high-quality wrist pins, locks, and JE's Pro Seal premium piston rings. This is a well-built set designed to handle serious use, whether you're on the track or just want a more robust engine build.