Thanks for the feedback. I wear ear protection when mowing, but for just carting around the property at lower RPM I'd rather not.
I like the idea of a rear exit exhaust. I've been eyeing this muffler:
https://www.amazon.com/dp/B004RCT0IK...v_vv_lig_dp_it
As it seems like it's around the correct size and reviews say it's quiet. Guess I'm going to have to brainstorm this a bit.
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Current Fleet: 100, 126, 147, 128, 1450, 1650