greddy e-manage any good?

[damian9669]

Ok so im thinking of picking up a Greddy e-manage for my rx7.The question to you guys would have to be (Is this a good unit to tweak the air fuel ratios with? Can this thing be dyno tuned ? Main thing would have to be where did you buy yours from and who tuned it for you?
Any info on this would be very helpfull.Thanx guys.