i was wondering if i should get some cam gears. if yes, what brand should i get? and what do they do?

 

If you don't have aftermarket camshafts, I wouldn't bother.

AFAIK, Toda is the only company making cam gears for the S2000. The design isn't as simple as the gears/pulleys on the old Integras/Civics.

Basically, adjustable cam gears are used to fine-tune the camshaft timing so you can advance or retard the cams in relation to the piston stroke and in relation to each other. Sometimes this can be used to get more power, but from most of my research, it seems like it's generally used just to move the peak power/torque to a different part of the powerband.

These are not plug & play items. If you buy these, expect to invest a considerable amount of money on dyno time & tuning with an experienced tuner.

So, in summary: Don't bother.