why not?  any chip mugen, spoon, ect are made to alter the fuel/air curve and tune the engine to a more sportier running condition.  like lower the vtec engagement point.  if im correct (correct me if im wrong)  you can use the v fac to alter the vtec and fuel/air intake and lower the vtec engagement.  you can monitor it more closely since it has a screen.  if anyone knows more than what i do,  please correct me