BS kite on silencer question

[Ghoti]

If my old BS kite mark "fell off" my straight through Akrapovik, as they do you know, and I wanted to put one on to help at MOT or being stopped by police time replace it, where should the kite mark go?

Is it where the 'not for road use' was, ie under the little pipe at the back of the silencer, where the 'E' mark is on the OE pipe, ie on the inside, or doesn't it matter.

Thanks in advance