Twin Air 153101 Dual-Stage Air Filter for 1981-83 Suzuki RM125 2003 Kawasaki KEF300 ESR587 does not rely on

ESR587 does not rely on the surface it is mounted to for getting the heat away from the housing like the OEM regulator/rectifier

2008 Yamaha TW200

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2001 Aprilia RSV 1000

Twin Air 153101 Dual-Stage Air Filter for 1981-83 Suzuki RM125 2003 Kawasaki KEF300 ESR587 does not rely onTwin Air Racing Dual Stage Replacement Air Filter Part Number: 153101 Fused dual layer design for a combined increase in performance and protection Revolutionary micro gluing process minimizes seams for added protection Washable and reusable up to 50 times without replacement New Round design boosts air flow Twin Air's breakthrough, fused dual layer design (now widely copied) for combined performance and protection. The fused layers of open pore foam