GSC Power-Division S2 cams for the Nissan SR20 S13/S14 non Variable engine. The S2 cams are designed for those running an upgraded turbo such as a GT35R. These cams will not have bottom end losses over S1 cams; nothing but gains and will promote an extremly flat torque curve. Gains of 50-70whp (depending on Turbo) have been seen by simply bolting the S2 cams in and reshimming. Designed for a rev range of 4000-9000rpms, these cams require valve spring upgrades. 475-750whp camshaft set with a ruff idle.