-vtec is vtec. You cant really change it up, you can change the activation point to a diff RPM(buddy club vtec cntlr)
-the solinoid does not change the vtec stage if thats what your asking. It only opens a port to allow oil psi to push the vtec pins to lock the 3rd cam lifter (only on intake portion for d16, B/H/K series change both intake and exhaust)
-unless you get a cam shaft, and change the cam profile lift,duration,etc *just a simple explaination