These pistons feature an industry first ArmorFit coating on the piston skirt, as well as a proprietary ArmorX coating on the entire piston. They offer superior protection against wear, higher compression, smooth and quiet operation, and maximized efficiency. ArmorFit Skirt Coating: Forming to the shape of the bore CNC machined dome shape, along with the ArmorX coating, allows for more efficient power delivery and fuel use thanks to improved flame travel during combustion. The engine will operate smoothly and quietly throughout the entire RPM range.

• Premium compression ring for ultimate seal and consistent performance in all operating environments
• Napier second ring with tapered face and under-hook design improves oil scraping
• 3mm oil ring design provides higher tension for enhanced oil control
• Black Edition series’ proprietary ArmorX coating on crown, ring grooves, and pin bore delivers superior wear protection
• Proprietary ArmorFit skirt coating on Black Edition conforms to bore size and reduces operating friction and noise
• Available in various bore sizes and compression ratios to tailor your performance build