I have a 71 Bonnie T120-R and it has what I have heard refered to as "cigar" mufflers rather than the "trumpet" mufflers. I´ve seen several 71 Bonnies with the cigar mufflers. I have been told that some did come with these mufflers, as Meridan was using leftover stock from the previous year. Other have told me some owners just added them as aftermarket parts. Any insights? Thanks.