|K&N YA-1699 filter in stock air box.
Added 2, 1 3/8 inch extra holes to the factory airbox(poor mans BAK). Trailing edge towards the bottom. I removed the rubber boot in the air box inlet.
I have adjusted the little screw(duration) and lock nut on the accelerator pump. The locknut is on top of the arm, and the screw, is 2 1/2 turns off of the nut
Rejetted the carb.
The intake manifold, is ported by Curt.
Running Pumpless, with the Yamaha Grizzly valve, and an inline filter.