On your website I can find the throttle body memcal tune for the L67 but I can’t find the throttle body memcal tune for my L36 Ecotec VX? Please help?

The L36 ecotec VX requires a re-calibrated computer/PCM as it does not use a memcal as the L67 version does. Use the drop-down menu to select the correct tune. You can find further details here:

http://www.maceengineering.com.au/epages/shop.sf/en_AU/?ObjectPath=/Shops/mace/Products/COMP611/SubProducts/COMP617