not worth it at all with only intake and exhaust. moving the vtec x-over around without internal work done will more than likely lose you power. if and when you do go turbo, there are better options available. fully programmable engine management systems like hondata and crome allow you full control of the fuel and ignition maps as well as vtec and other functions. that afc/neo only allows you to mess around with the fuel maps a little and vtec.