GSC Power Division S2 Billet Camshaft Evolution X 4B11T Mitsubishi are designed for those with 600+ HP in mind. Gains of 40-80 WHP (depending on turbo) have been seen by simply bolting the S2 cams in.
Designed for a rev range of 3800-8500 RPMs
The S2 cams require an upgraded valve spring
Forged billet core
Made 100% in the USA
 
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