Haven't seen any, I sprayed that area of mine with rubberized undercoat though. The fit allread has a coating under the paint in that area, but overkill is just enough kill.
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Donald Phillips
MECP Certified Installer first class
And the USDM model is shaped different in that area (at least on the fuel filler side) to use the USDM emissions fuel filler. Even your gas cap cover and unit is mounted higher up on the fender on the USDM versions ONLY. Not sure on the other side.