Does the ProDesign setup use 2 airfilters? If one is it oval like the stock one?

just put one on mine. it is a dual filter setup. according to the instructions it says to run the outer filter in sandy or dusty applications. i run both on mine.

I run both also. When cleaning the inner one is never dirty and I do an aweful lot of sand riding.

Get the pro design kn filter!! it flows alot more than the foam i use the
outerwear and the filter stays clean. it flow so much i had to rejet to
150-155 main jets and 25 pilot jets.

01 BLU 660R
GYT-R FRONT BUMPER
GYT-R SIDE FRAME COVERS
GYT-R SHOCK COVERS
GYT-R HOUR/TACH
PRM ENGINE SKIDS
PRM BAJA GRAB BAR
PRO-DESIGN KN
12 TOOTH
UNI CRANK FILTER
WILDSKINZ HEADLIGHT COVERS
DURA BLUE ELMINATOR (MONDAY)