The Brian Crower single exhaust camshaft for the Nissan SR20DET is a Stage 2 unit intended for S13, S14 and S15 chassis. Supplied as a single camshaft, it's specified for SR20DET builds where a Stage 2 exhaust cam is called for and is aimed at supporting higher-rev and modified engine applications; use it as part of a matched cam and valvetrain upgrade during an engine build or rebuild.
Brian Crower Nissan SR20DET Exhaust Camshaft - Stage 2 [S13/14/15]