The PERFORMANCE MACHINE (PM) Performance Piston Ring Set is engineered for pistons, cylinders and top‑end applications where precision and durability are paramount. Designed for street‑oriented riding, the set follows the Race Series philosophy, delivering the tight tolerances and consistent sealing needed for high‑performance street machines.
Included in the package is a machined cam cover finished in the proprietary Black Ops™ coating. Identified as the Race Series Cam Cover – Black Ops, it features an M8 mounting interface and is supplied as a single unit, matching the set’s overall street‑riding focus and performance intent.