Does anyone know if I install the Delkevic 14" Stainless Oval Slip-On Mufflers on my 2015 Max do I need to do any modifications to the bike or can I just install the slip ons and drive and do nothing.
Slip-ons don't really change anything. When you increase the size of your primary pipes is where you wind up having to re-jet your carbs more times than not.