Hi guys a buddy of mine has an SCT tuner model 9415B, he said he would sell it to me for $250 due to his being layed off and it hasnt been used. Anyway whats the difference between this and a 9415A and the XCAL 2 I see guys on here talking about. Also he got it from Jegs if that makes any kind of difference I looked at SCT's website but Im not seeing a whats different about the A to B as far as the 4.0 is concerned.
Any info would be appreciated .