Holden Commodore VT-VZ LS1 5.7l Exedy Heavy Duty Clutch KitDESCRIPTION Holden Commodore 1999 2006 VT VZ 5. 7L LS1 Exedy Heavy Duty Clutch Kit SKU: GMK 7296SMFHD The Heavy Duty (HD suffix) clutch kits are perfectly suited for use in modified vehicles or vehicles carrying loads used for daily driving or in amateur motor sports activities. A high performance clutch cover with increased clamp load which will transmit an increase in engine torque is included in these kits with an organic clutch disc creating a