EPS Air Filter Kit (Stihl 500 & 661)

This air filter kit includes one filter cage (Egan Performance Saws, made in USA) and one pre-oiled Uni Filter (CF 0690 - made in Australia), as well as one o-ring that fits around the knob that secures the cover to the saw.  (See photos showing how to install this o-ring on the knob)

This kit is designed to fit under the OEM air filter cover on Stihl models 500 and 661.  Testing has shown that the Uni Filter does a better job of filtering out fine particulates than the OEM filter, while also improving performance.

Please refer to the video below for proper installation tips.

Limit of 2 kits/order please.  If you order more than 2 kits, or other items with two kits there will be some additional shipping charges, which you will be receive an invoice for.

Please note: on 661s, the round black plastic piece that's underneath the oem filter will need to be removed prior to installing this filter kit.

Please note: Back orders will be filled in the order that they are received.  Please allow up to 2-6 weeks (typically less) for item is Out of Stock.