Drone elimination muffler

A method for attenuating drone exhibited by an exhaust system of an internal combustion engine, comprising:

• providing a hollow canister having a length and a diameter suitable for use in a drone elimination muffler;
• selecting a tuned port having a length and diameter suitable for operating in concert with the hollow canister to attenuate exhaust drone, wherein selecting the tuned port includes clamping a damper clamped within a joint between the hollow canister and the exhaust system, wherein the damper comprises a perforated stainless steel sheet;
• connecting a first end of the tuned port to the canister and connecting a second end of the tuned port to the exhaust system, such that the canister and the tuned port substantially attenuate exhaust drone at one or more frequencies of engine operation, wherein the second end is connected to the exhaust system at an outlet of a second muffler;
• and
• thermally connecting a first thermocouple with the tuned port, the first thermocouple being configured to detect and monitor a temperature of the tuned port to facilitate maximizing attenuation of drone in the exhaust system by adjustably tuning the drone elimination muffler during exhaust gas temperature changes in concert with the damper.