this is a reply i got from the uk vems guy after reading this......

VEMS is not open source, units are bought assembled and tested from the manufacturer. We currently use MegaTune because it's a great tuning package and better than we have the resources to develop as we're constanly developing new features and products.

also he gave me this link to those interested.

http://www.vems.hu/wiki/index.php?pa...ob%2FUserGuide