VelocityAP's all new JLR Supercharged pulley system.
Their original 1-piece design worked great when fitted on it’s own, but after developing our advanced datalogging system we were noticing marginal slippage on cars fitted with dual pulleys, as the belt aged & wore.
This new solution offers a number of advantages:
FITS ALL JLR 5.0L SUPERCHARGED ENGINES 2009-PRESENT
FITS ALL JLR 3.0L SUPERCHARGED ENGINES 2013-PRESENT (62MM SIZE IS SAME AS OEM UPPER ON 3.0L)