The Skunk2 Ultra Series Stage 1 camshafts are listed for the Honda K20C4 engine and present a Stage 1 profile intended for that specific K-series application. They are marketed as Ultra camshafts for K20C4 engines, suitable where a Stage 1 cam upgrade is desired; confirm compatibility with your valvetrain and tuning plan before installation.
Skunk2 Honda K20C4 Ultra Series Stage 1 Camshafts