#21 - MUFFLERS FOR YOUR GRAVELY L-SERIES ENGINE -
#L-816: STANDARD ROUND "pepperpot" MUFFLER - 1" threaded opening. Minimal attenuation of noise. Mostly functions as a spark arrestor. Supplied alone or with pipe nipple & locknut, which can also be purchased separately. Other Numbers: #8227 & #21457900.
#MT-1B: MUFFLETONE™ MUFFLER, VERSION II - Acoustically designed muffler provides noticeably quieter operation without increasing backpressure at the engine. Measured acoustical output drop of over 50% of harsh frequencies generated by the Gravely L-series engine. Mounting hardware included. No drilling required. Complete installation instructions included.