thank you guys, i have edited the last post to reflect some flake i am getting from other forums....
The VPC does control fuel by eliminating the maf and playing with buttons. I have tuned with this before. Once you get used to it, it works very well. To bad it is disconinued!
I have been using the smt6 on my 5vz-fe s/c for 3 years and 80k km now...amazing thing...tune and forget
Here is a big discussion about the smt6 smart guys here and it was this forum that brought me to the smt6.
http://www.yotatech.com/showthread.p...highlight=smt6
I have added this to the above post:
"I have to say that YES i am a reseller of the SMT line of products, and you may think that I am being biased on all this and you should (as said by others) take all this with a "grain of salt", please understand that this is all up for discussion. The reason WHY i went with perfect power and the SMT series piggybacks is because of the above reasons! Why would I go for something thats not as good yet costs more? I am also a greddy & HKS dealer as well yet i don't go boasting about there piggybacks, it just does not match up as well as the SMT units do. I'm not here looking for money, most people are but I'm not like that and some people can back me up on this. So take it the way you want it, but please if you have any input post it here! This way I and everyone can see and add their own input to the matter. I will change the above info accordingly if things change."