 Instead of the V-Boost on the original carburated V-Max, the fuel injected VMAX uses YCC-I and YCC-T.
Yamaha Chip Controlled Intake (YCC-I) is a new addition to the VMAX.The airhorns inside the airbox are lifted by a servo activated at 6,650 rpm to open up the airway underneath.This shortens the length of the intake system from 150 mm to 52 mm.