The F3 does handle well right out of the box. No doubt the best handling Spyder of all. When I do prototypes for a product I depend heavily on 'Test Pilots'. I can't afford to buy a new Spyder every time BRP changes something. Usually I have no problem finding willing Spyderlovers for this thankless job. But not so for the F3. I tried to talk several people into testing this bar kit on their F3, but I got the same answer. 'My F3 handles so well I don't want to mess with it'.
Finally, after some shameless badgering, one of my good buddies who also does installs said he had a customer with an F3 that wanted to have a bar installed. He said he'd install the bar and go riding with this customer who was willing to swap F3's during the ride to compare. I was thrilled because you can't do any better than having a veteran, experienced Spyder rider jump between F3's on a road that he knows. Not to mention the feedback from the customer would also be invaluable.
When the phone call came I was a bit apprehensive. But the word I got was; 'The F3 handles great with the stock bar. But it handles FANTASTIC with the Ron-Bar! Both he and his customer (who was very happy by the way) were amazed at the improvement.
Need, like beauty, is in the eye of the beholder. But until you've ridden an F3 with, and without a Sway Bar upgrade, it's hard to say, without reservation, that you don't need it. Sometimes we are satisfied because we don't know what we're missing!

hyea:
But I'm always happier when a customer puts some miles on their Spyder and gets to know it intimately before upgrading the bar. They are much more impressed that way!