I dont know the first ones but I have the new SAFC II and have had it about 4 month and I love it. I picked up 10.1hp on the dyno and just dynoed again the other day and it still works on my car. My computer has not changed the setting at all. By the way I drive an 01 gts 6spd.
"Anyone who tells you money is the route of all evil DOESN'T have it- They say money cant buy happiness, well check out the fucking smile on my face, ear to ear baby"