Originally Posted by dwpayne
I am getting ready to buy and sct finally and was wondering if there is a difference between the sf3 and the x3? Which one should I get and who should I get the tunes from I know Matt is at gearhead but I've heard about Vivian a lot too what company is she at?
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The X3 will be used by companies that offer custom tunes. The X3 is basically a blank tuner(no tunes) until a custom tuning manufacturer installs the tunes into the tuner. The SF3 is the same unit but preloaded with 5 canned tunes from SCT. 3 tow tunes, Street and Performance. In my opinion the SCT tunes are great, but a lot of guys dont like the idea of canned tunes. So the SF3 not only has 5 preprogramed tunes but also has the capability of storing 3 custom tunes.