https://www.aliexpress.com/item/2pcs-Un ... 4c4d7FluXB
You'll need the 52cm length option in Black or "Carbon Fibre" (use the 'colour' selection). Your colour choice might not matter though, I ordered black and got CF
This is with them mounted as far out as they'll go. There is a gap toward the back where the flat mounting surface ends.
I mounted mine so they didn't stick out as far. No gap at the back.
The extensions come with self tapping screws, but I used two screws with captive spring nuts/clip nuts, and two push clips per side that I had laying around. Heaps of room under the rear bar to mark out and drill. You can use the existing mudflap mounting hole, will need to drill 3 other holes each side.
