Nunook wrote:the greddy ultimate will give you more adjustment and features. I think you can do map sensor conversion with the ultimate. If so, I would get the greddy.
but the safc2 is easier to install, Less wires.
He nailed it. The Greddy unit is a MUCH better unit from a tuning standpoint, but I think it's more expensive, it's more complicated to install, and IIRC requires a Laptop to tune.
The SAFC isn't as good at tuning with, but it's cheaper, easier to install, and doesn't require a laptop.