Hi,
I 4-weeks ago i bought a Memcal from: Blackstar7000 on Ebay
eBay Seller: blackstar7000: Cars, Bikes, Boats items on eBay Australia
They just ask you what: year, model, trans and any modifications you have made to your vehicle and they program a memcal to suit your vehicle as best they can.
They conservatively report a 10-12Kw gain with the Manual VR V6 model. I can definately feel a huge difference in power, but particularly the incredible (un-holden like) smoothness of power throughout the entire rev-range.
I also bought a CAI to suit and the difference from stock (well actually from a Pod) is Fantastic.
The CAI does not effect speeds below about 75Km/h, but has significantly increased the pulling power in the 80-140Km/h Range.
The Memcal was: $165.00 (with an optional $40.00 rebate to send your stock chip back to them.) and took literally 6mins to install.
CAI was $59.00 and took about 15mins to install because you make the air box intake hole larger.
Total = $224.00 & 21mins - No doubt, The best $224.00 i have spent
Cheers