I now have a 2015 SG and have then shopping for slip ons. Klock Werks Super Saver is one I am considering. Their website recommends a fuel management system for any mods. A lot of conflicting information on the Internet about slip-ons and fuel management systems.
Is a fuel management system necessary when adding slip ons with stock air filter? Any info is appreciated.
A good rule of thumb when doing any sort of performance modification is that anytime you alter something that has an affect on the air:fuel ratio then you will want a tuner. In
most cases you can add a set of slip-ons to an overall stock bike without the need of a fuel tuner. However, as mentioned, this is the case with
most slip-ons...not all. For example, if you were to go with an "open" slip-on that doesn't have a baffle this will have an affect on the air:fuel ratio therefore a fuel management system would be necessary for best performance.
While you may not need the tuner with the KW Super Savers per the other posts on this thread, it is extremely important to note that if the air:fuel ratio is indeed altered by adding these then you run a greater risk of the bike running lean (aka: hot) which over extended periods of time can cause the chrome on the slip-ons to discolor (ie: the dreaded blue hue) and since this discoloration is caused by a tuning issue and not a chrome defect, then it is not covered under warranty.
That being said, my hunch is that you could run these on your bike as is without issue but in my opinion, you will not only get the best performance out of the upgrade but also greatly reduce your risk of chrome discoloration by adding a fuel management system to the equation.
Hope this helps clear things up!
Lindsey :0)