Pro clone muffler

of hand I would say which ever one fits. always liked the 1 5/16 ths. call Jerry he will have the real answer.
 
The 1" is the one that fits the Holy Moses pipe, and most other Big Pipes that i have seen, but im sure some take the B91XL, i would thing the 1 5/16 muffler is for the kind of pipes used on open motors
 
The 1" is the one that fits the Holy Moses pipe, and most other Big Pipes that i have seen, but im sure some take the B91XL, i would thing the 1 5/16 muffler is for the kind of pipes used on open motors

the 1 inch B91 fits spec pipes with screw on muffler
The holy moses line takes the same 1 5/16 RLV-B91xl muffler that is used in all other classes, this muffler is available in stock and modified versions, but both are 1 5/16
http://www.doverpoweronlinestore.com/headers__mufflers.html
 
You are right XXX, measured the one on my holy moses today and it is 1 5/16". Sorry for posting wrong info on the mufflers
 
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