Put on those racing muffs, the total length of the unit will be 24" with 3" of that being the rear input of the muffler. Stock replacement including turndown is 20"; this will essentially be 21". The cool part is a polished ss tip for $20.
Mods? Do the ones in the garage waiting to go on the car count?
Many thanks to my fellow Veterans; I am honored to be a part of your ranks.