Jon:
I could never find them. Looked into something special made from stainless by a friend but decided to buy the 2" ones from Finish Line. Just filled the gap around the seal to the bar with Black Silicone. Look fine!
Jim
You can always make you own. Took a few hours but worth it. Just need a large hole saw and a drill press. The aft bezels need to be hog out a little a bit.