http://www.bostig.com/products/
Luftmassenmesser Umr�stsatz (LMU)  COMING SOON!
Our final electronics revision is underway.
We will soon be pre-selling the ultimate upgrade
for the fuel injection system of the original waterboxer equipped vanagons.
It yields 10%-12% more power and torque at the wheels as well as better
fuel economy and reliability through all altitudes and conditions.

ok so how come no one has made this better mouse trap b4
hope they take paypal :)