personally I wouldn’t have my wheels powder coated because they have to be cooked in the oven and I wouldn’t trust some of the firms out there ,unless they gave ma a guarantee that the heat won’t weaken or damage the alloy ,i watched a program a few years back and they was saying the pitfalls of heating the wheels up to powder coat them
https://forum.mx5oc.co.uk/t/a-downside-to-powder-coating-perhaps/133465