So it sounds like it will work swapping the ECU without the Buds
Dunno if you'll be able to do the change yourself, without any of your mates or the assistance (??) of some Buds :dontknow: but when it comes to
BUDS ie, BRP's Unique Diagnostic System....

then it's a definite
Nope, it will NOT WORK without BUDS :shocked:
Just to be absolutely clear, if you're physically changing the ECU to another unit, ie, you're installing a second/alternative ECU with a different ID & Serial Number, then even if that 2nd ECU has got
EXACTLY the same tune/set-up as the original (or if it's been updated/upgraded) then you
WILL need BUDS to let the rest of the bike's computers know the ID of whichever ECU installed is installed now! :lecturef_smilie:
However, if you take your Spyder's existing ECU out & send it off to get its tune upgraded, you won't need to use BUDS when you re-install
that same ECU AFTER its upgrade - it's still the same ECU, its ID & Serial Number hasn't changed,
just the tune; so you can plug it in, start your Spyder up, let it idle for a little after starting, and then off you go with your new tune on the same/original ECU happily working with everything else, cos it was the last one the system recognized & its ID hasn't changed!

hyea:
It's
ONLY when you actually
change the ECU to a different ECU (ie, physically install another black box with a different ID & Serial Number

) that
you need BUDS, but then, if you do that,
you'll need it EVERY time! :2thumbs: