This guide will show you how to modify your stock air filters for slightly better flow.
First, remove the rider seat and then remove the fuel tank front mounting bolts and washers.
While slightly expanding the front of the seat cowl, raise the front of the fuel tank and support it with the extension and pin spanner in the tool kit (or use a block of wood at the back of the airbox.)
Disconnect the air temperature sensor connector. Remove the seven screws, washers, air cleaner rubbers and cover.
Next remove the rear velocity stack (Figure 1). Once the velocity stack is out we can remove the air filters, starting with the left.
Now that the air filters are free, we can get to cuttin'. Use a Dremel (or equivalent tool) with a cut-off wheel to remove the fine wire mesh from around the air filters by cutting along the edge of the mesh (Figure 2). You will also have to cut the tack welding where the mesh begins. The mesh is wrapped around the filters two times.
Your finished product should look like the air filter on the left (Figure 3). Once you've removed the mesh from both filters, reinstall the filters in the opposite order they were removed. This would also be a good time to remove all the rubber pads that are stuck to the sides and top of the airbox (if you want to reduce a little weight.)
Now reassemble the bike and you're done.
Guide by Troy Gwin & JaSoN Hinton.
Brain provided by Aubrey D.