Does the screen in the stock airfilter cause a restrictive airflow?
Maybe just a little but it also causes your bike not to catch fire!
The screens purpose, is to keep the filter from catching fire, if the bike backfires. DO NOT remove it.
99 WR400f, YZ timed, MX-Tech suspension, Scotts steering damper, White Bros E-Series (12 discs), tapered header and a/f. Kouba T-handle for the fuel screw. Works Connection billet throttle tube and frame guards. Cycra Pro-Bend, triple clamp mount handguards. Thumper Racing rad guards, Renthal Jimmy Button highs, YZ Tank and IMS seat, YZ number plate, odo removed, EKP #4, 50PJ, 175MJ at 500-1000' Thanks James Dean!
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