To add to the response from Tom: BRP initially claimed that the performance issues with the recall were caused by aftermarket performance parts. I'm not sure how precise the actual correlation was, but, my understanding, is that machines with mods, such as exhausts, filters, etc.. were recommended to get the 2nd update. I certainly could be wrong, because there was a fair amount of misinformation in the beginning.
The information has definitley been all over the map but I do not believe your statement is correct. I believe this line of thinking evolved out of the initial statements from BRP that (as you said) problems with the 1st Update were caused by aftermarket additions.
Though I can't say that none of the 1st Update issues were aftermarket induced, it was found that many, if not most, of the problems ocurred on bone stock Spyders.
The fact that there is a 2nd Update is, in and of itself, an admission that the problem with the 1st Update was NOT aftermarked induced.
First, BRP is not in the business of supporting aftermarket changes to the Spyder with computer software updates. And second, there is no way a single software update could be configured to work with every aftermarket system installed on every Spyder.
The simple answer to these 2 Updates is;
Update #1 - Universally required as a safety update. No matter what the 1st update was designed to do, how it accomplishes the desired end, or even if the customer wants the update or not, BRP intended every Spyder made to receive this update. My opinion? Everyone should get this one.
Update #2 - Designed to fix the relatively few (according to BRP) issues caused in some Spyders by the 1st Update. If the 1st Update did not cause a problem for your Spyder then you do not need the 2nd Update. My opinion? If you need it, get it, if you don't, well, I guess I don't have an opinion about that.
And the 2nd Update is designed to address only the surging experienced below 4000 RPM. This is a purge valve timing issue (software caused) and the only issue addressed by the 2nd Update.
It won't fix squeeking brakes, low tire pressure or steering problems.
