The FS 460 C-EM is the first STIHL brushcutter available featuring the STIHL M-Tronic™ system – an intelligent engine management system designed to deliver optimum engine power at all times. The STIHL M-Tronic™ engine automatically adjusts to changes in elevation, temperature, air filter cleanliness, fuel quality and octane levels, eliminating the need for manual carburetor adjustments.