UNI filters makes sheets of open cell foam for dirt bike filters; get a sheet, use flexible RTV to glue it together around your filter. Use scotch tape to hold it together until the rtv cures. (no latex tape; painter's tape is latex based))
It will be removable and cleanable, and keep all the crap off the real filter. It only stops the big stuff. It has to be oiled as well.
I ran this combo on a competetion ISDT bike,and every car I had to drive on a dirt/gravel road for the last 30 years; it works great.
Make several covers, and swap them regularly; they pull off like a sock.
BTW, Stock, as long as you pull the inlet resonator off the airbox, there's no real restriction on the stock airbox with a clean filter until ~5000rpm. (~1psi drop in front of the [email protected]
5000rpm. How may seconds do you spend there?
Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.
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