My lovely ARC intercooler is looking a bit grubby these days. It used to look like this

But too many pigeons

and clattering these oh so tempting beauties all the time

and the odd

Have lead to it looking like this

Now I don't doubt Gary can advise me on this, but in also interested in the humble amature opinion too. What do you reckon guys? (Helpful pointers like' stop twatting cones' will be shrugged off)