Upgrade your Nissan RB engine with Hypertune billet low profile rocker covers, designed specifically for RB20, RB25, and RB26 engines. Available with or without a provision for an oil cap, these covers are a perfect enhancement for any engine bay. Each cover is precision-machined with a -12ORB port to serve as a breather or return, ensuring optimal performance. For superior oil control, consider adding the full-length cam baffles. Elevate your engine's reliability and aesthetic with Hypertune products from Culture Automotive.