Add this switch to any 2014-2019 300RR, 250RR, or 4-stroke to access the soft ignition map, or the XTrainer to access the more aggressive (very slightly!) map.
The guards are really good but, with Renthal fatbars they require the HCM clamps. These clamps are really good also but, when bolted up they should angle the guards down about 1/2 inch lower.