KTM & Husqvarna US Dualsport models have an airboot equipped with intake reeds. These reeds boost and maintain a strong bottom to mid range power feel but diminish the top end motor performance, if you're looking for more peak power and performance - this is it. 
 
Increasing air volume and velocity requires more fuel delivery: OEM ECU reflash, JD Jetting Tuner, Vortex ECU, or GET ECU will be required.