stewartj239
New member
if you add the kewl intake do you have to add a juice box--will it change how rich or lean the engine runs ?
It depends on what else you've done to your bike. It seems that the 3 main things that people do that would affect the FI are adding a silencer, removing the cat and opening up the air intake. These will typically make the bike run leaner. The stock ECU seems to adjust just fine to any one of these mods. It's when you do two or more that people start noticing the lean conditions. If you have a 2013 RT / ST, there is a new ECM that was just released which I'm guessing will richen up the FI map, so that update might allow for even more adjustability from the stock unit. Since I am doing all three, I am playing it safe and going straight to the PCV.