"Can't hear you, I've got a noisy muffler"! (grin)... the original muffler in my 81 H30 has developed leaks & rot around the seams... must be replaced... no immediate replacement seen that has the same size/shape... anyone else out there dealt with this problem? Please tell us what model you used for a replacement, or if you had to devise a new mounting approach or ??? Thanx!