How did you get on with this, mate? Easy to replace? I'm thinking of replacing mine as all the red has worn off over time due to injudicious use of a power washer.
Yeah I'd like to know this too (how on earth do you get the old ones off and then the new ones on without ruining the paint work?)
In fairness the OP did PM me how he did it but I didn't really understand.... :-(
He is what he said he was going to do:
'For changing them however I have been thinking about it, I'm going to cut electricians tape into V at the end, say 4 strips and then point the tip at 4 keys points and take a photo. Then heat up the area with a hair drier and then use dental floss and pull it down the back, that should get it off then just give the area a clean and you can line up the new one.'
Actually, having re-read this now it does make more sense, but I can't imagine it is THAT easy? :-o (not for someone as useless at these things as me, anyway)