was considering a power commander 3 or a tfi system to manage my fuel system. had good numbers and performance with the tfi system on my 954, but others swear by the power commander. with the power commander, you need a labtop or pc in the garage for switching maps, the tfi only has potentiometer adjustments, but adjustments can be made quite simply with a pocket screwdriver. then again there is the price tag issue. the pc3 is about $275 and i got a price of $125.00 on the tfi. but ease of installation for the pc3 is a straight forward plug in, the tfi needs to be spliced in. anyone else gonna use a fuel manager of any sort. positive or negative feedback appreciated