Mahle Original Fire-Power piston ring sets are designed for nitrous oxide injected, turbocharged and supercharged race engines. As temperatures, pressures, and rotational speeds continue to rise, piston rings are subjected to ever increasing loads. Concepts for lower wear and friction, better sealing, and greater break resistance are in demand. MAHLE is therefore continuously developing new coatings and ring design variants and offers the optimal piston ring or piston ring pack for every engine. The broad range of products includes compression rings and oil control rings in various designs, profiles, and technologies.