yes there is a way to do it. its called a VAFC VTEC controller and u can get one for around $375 *pm me if interested*
yes it modifies the RPM at which Vtec kiks in D16y8 kiks in at 5500 rpm, u can modify it by 500 rpm increments. BUT. u must have it tuned right becausxe the VAFC messes with A/R ratio, and u can mess up ur engine by not having the proper settings
Dan