How long would it take to install the MACE PERFORMANCE COLD AIR INTAKE KIT TO SUIT HOLDEN ALLOYTEC LY7 LE0 3.6L V6 on a stock VZ?

Depending on your level of mechanical experience, installation would take around an hour. To give you a better idea of the installation process, please refer to the fitting instructions in the link below:

http://www.maceengineering.com.au/WebRoot/ecshared01/Shops/mace/4F9A/18D0/ABB0/5313/DA71/C0A8/D240/BF7A/CAI__alloytech2.pdf