The additive system in MX 7 provides the following properties:
Testing has shown that the Foam Filter does a better job of filtering out fine particulates than the OEM filter
This dawg is smaller/shorter than others on the market
even under wet conditions
Bolt on more power with an Egan Performance “header pipe" to your Echo 355 chainsaw for an immediate increase in power and throttle response and a reduction of engine temperatures
NZFFAS Air Filter (various Stihl models) barkbox The additive system in MXMOST AIRFLOW AREA ON THE MARKET! Includes filter cage and pre oiled Filter element. Fits under the OEM air filter cover on Stihl models 044 440, 441, 046 460, 461, 650, 064, 066 660, 084, 088 880, and 881. Better filtration than the OEM filters, while improving performance.