I was just wondering what parts I need to make my VX V6 GTS replica sound close to a V8 it already has a full exhaust and your mace cold air intake. I have been told that if anyone would know how to make my car sound like a V8 it would be you guys.

While it's not really possible to have your V6 Ecotec engine sound like a V8, it is possible for it to sound tough with an appropriate cam upgrade. As such we would recommend our Stage 2 COMP cam kit as shown in the link below :

http://www.maceengineering.com.au/epages/shop.sf/en_AU/?ObjectPath=/Shops/mace/Products/CCP618/SubProducts/CCP618

Please note that while you would be able to get away with using your standard timing chain set and valve springs, it wouldn't be a bad idea to upgrade these to improve engine reliability after the cam upgrade.