FLAPPER eliminator for 2015 RnineT - measurements to save $ on exhaust mods

I made them for both my bikes, same dimensions as you have but no step in the middle, nor was it required, just looks prettier but once in place whose looking? Here'

s a pic of the one in my 1200 GS Adv, once the clamps are tightened as normal nothing wants to move around. I put the untidy looking witness marks on just to watch for any movement, that was over a year ago and still the same as when I put it in.