What comes with the Mace cam package for a VZ SV6 and what gains will I get without a tune?

The cam package suitable for your vehicle, Part No: CAM616, comes with 4 brand-new billet cams. For more information about this package, please check out the link below:

http://www.maceengineering.com.au/epages/shop.sf/en_AU/?ObjectPath=/Shops/mace/Products/CAM616 

You would be looking at gains of around 15-20rwkm without a tune. With a tune, you'd be looking at around the 30rwkw mark