Long story short...while a lot of fun on the very short stretches, that Lazer can is just waaaay to loud, makes you want to get off the bike after 20 mins. (and spent the whole trip in 6th @1500rpm).
Tried to find some bungs that could be modded quickly but no luck.
Finished up in the process with a complete Staintune for a 2008 Speed Triple, through the Trading Post from Hobart, no less!!
The bungs out of those cans proved the wrong type + size (I assumed them to be all the same), but the cans as a whole turned out perfectly usable...so, the right one is going onto the DL (pics later), the left one, "inside-out", onto the Klacka, as that OEM-can had been "treated" with a length of reo and a hammer making the KLR sound like someone thrashing a half-full tin of soup with a big spoon.
Modding the Trumpy muffler for the Strom was fairly easy, the can is short to suit the short tail of the Speed Triple, the key hanger bracket just needed some gentle bending in the vice, playing with the new lead-pipe now.
No additional brackets and mods were needed on the bike, a swapover to the Lazer and back won't take longer than a few minutes with everything in place, whichever can is used.
The Lazer will be shelved for the time being until I find some ways and materials to quieten this thing down a fair bit.
Gotta run and get some prepped-last-night bits to the welders now.