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Expel Ultimate will not yellow. They key is to not use cheap wax or carnauba wax products on it. I have had white cars with clear bras for years and they do not yellow like they did 8-9 years ago. Now the factory piece on the quarter panel all bets are off since we do not know who makes it.
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2021 M2 Comp Sunset Orange |Black with orange Stitching Dakota Leather|Executive Pkg|DCT
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