there sure is a dual stage VTEC in the B18C.

VTEC Engagement-Intake: 4400rpm, Exhaust: 5800rpm
Induction System Programmed Fuel Injection (PGM-FI) with dual-stage intake manifold

Using a unique arrangement of three cam lobes and three corresponding rocker arms for each pair of valves, the VTEC system can alter not just valve lift, but valve timing as well in response to engine load and driver demand. VTEC operates on intake as well as exhaust valves.

The crossover point between nominal valve lift and high valve lift occurs at 4400 rpm. As the engine continues to rev beyond that point, another system comes into operation - the dual stage intake manifold. At 5800 rpm, a second intake runner in the dual stage manifold opens to fully exploit the additional breathing potential of VTEC. Thanks to these two complementary systems, the GS-R engine has an almost flat torque curve from 2500 rpm up to 7200 rpm.

WELL I THINK I:VE AWNSERED THE QUESTION!
END!