You might have a problem. The tuner "marries" to the first ECM it encounters permanantly. If what I understand about mine is correct, it is useless to you if it has been "used".
I love mine, and hate to be the messenger on this...but you might wanna do some checking.
Maybe others here on the forum have some other information...and I hope more positive than mine. I do know there are several "incarnations" of the thing out there...
...and I used to think my Sportster was heavy...
A Harley will get you through times of no sex, better than sex will get through times of no Harley.
SE Heavy Breather
V&H Monster Ovals
SE Pro Super Tuner to make the above play nice together.