Not seen them and had a quick look on YouTube with no success I'm afraid. Think it might be a leap into the unknown for you bud
They're not my thing but life would be dull if we all liked the same agreed ref the seller and my leap of faith bit was aimed purely at the fact there's little internet coverage on Commanders fitted with them for you to research
These aren't so cheap but it's were I got my decat pipe from. https://daveplattexhausts.com/triumph thunderbird lt and commander/ Alternatively the Triumph TORS should give a good sound if you can find some
I linked them in your other thread mate but these are TORS (Triumph Off Road System) for the Commander https://triumphdirect.co.uk/silencer-kit---thunderbird-commander-2294-p.asp
I have a friend who has something very similar to those on a 2002/2006 ? Triumph Bonneville America , his a very very loud !! Anything over ~4,500 rpm is Close to Deafening ...