A lot of people have been successful in painting their calipers with matching touchup paint (spray and brush on) from the dealer without experiencing paint burn off or discoloration. Might consider that.
If you have access to epoxy paint dye/toner, you can mix it in with a true caliper paint and try to match the color of your PT. Go to a bowling supply store and see if you can buy individual bottles instead of the complete dye kit. The dye is designed to be used with various epoxys used to plug bowling balls, so it should be compatible with caliper paint and is permanent. Buy the G2 Purple caliper paint, add a drop or 2 of red dye/toner to it as you stir the paint, and try to match your Cranberry. Can put a drop of touchup paint on a piece of paper or cardboard and put a drop of caliper paint next to it so you can see how close it matches before applying it to your calipers. G2 Purple is already pretty close to cranberry.

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2002 Almond Pearl Limited Edition 27K
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