I would not do the swapo because you can't trade up in size. If you are going to buy, buy 16's IMHO. I have 16's on my 560 and they came out great with the procedure I did above and it only cost $12 + caps. If you really wnt to spruce it up get the chrome and blue crest caps from an after market co or E-bay. They are about $15 per and look lmarvelous. The new SLK's have them, 1 size fits all.