There is some HP, weight, and steering feel benefit to having no power steering, and there is also a weight and HP benefit to having no AC (if your car came with with it).
But the CTR pulley was really made for the better balanced b16b and I wouldn't use it on anything else, even if it won't kill a b18c in most all cases. You can send your stock pulley out to king motorsports and have them machine off the extra pulleys, so you can still keep the rubber harmonic damper and keep the motor happy. Or better yet use a fluidamper, you can read about them here-
The Old One - Energy Dynamics