Which one you are talking about? EK3 VTi, SOHC VTEC? That's the only 3-stage I know, there isn't a 2 stage. Its deployed for economy rather than power. If my memory serves me right the two points are 2500 rpm and 4500 rpm, 2 cut in points in 3 stages. The DOHC B16a in EK4, EG6/9, if I...