KTM 390 / Husqvarna 401 Open Air Box Cover

Can’t tell if it improved performance, but when I crack the throttle open, it feels like I’m braaping over dunes on the Dakar! The induction sound has me unnecessarily blipping the throttle to braaappp past cars. And in the desert OHV roads, it’s just plain fun to hear, not just feel, the engine’s power. May later get a tuner for an actual performance increase. But for the braapp alone. Well worth it!!!

So far so good. Definitely gets more air. Makes it sound better. Still pretty early to give a detailed review.

Sounds great and adds performance

Easy install and no issues with fitting to stock air box.

My mistake. This air box lid becomes the primary filter for the bike as air seeks the path of least resistance. When riding my 390 Adventure off road it gets dirty and the foam block would be too risky to use as the main filter. As I no longer have the package and I can't return it, I have waisted some money. Live and learn I guess.
It sounds great but not worth it.