Overview Reviews Similar Products –> Product Description Unexpectedly loud exhaust can make generator use unpleasant and disruptive, especially in residential or jobsite settings. The Generac 0J6220 Muffler W/O Cat Hsb helps reduce exhaust noise and keeps hot gases flowing safely away from critical components. This generator replacement muffler, without a catalytic converter, supports quieter operation and improves the overall user experience. Mufflers quiet the engine by directing and calming exhaust gases as they exit the system. Without the right muffler in place, noise levels can spike, and exhaust flow may be less efficient, increasing wear on nearby parts. Designed to match the original mounting points and airflow path, this muffler installs cleanly and helps tone down sound while maintaining safe exhaust evacuation during operation. OEM Generac replacement parts ensure your generator continues to function as originally intended and help you
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