I had them done on my 4.6 and used a vein finish at Prince in NC when I brought a ton of wheels there to do, been on for about a year and not my daily but they seemed well aware of the necessary prep for magnesium covers. I have not noticed any issues yet but its also why I went with a vein finish. The shop was gonna keep the finish as a standard offering they liked it so much.
NOTE: one thing I developed was a leak post install of PC covers and my helper was quick to point out AFTER was its VERY important to clean out the channels for the gaskets as powder can sit in there and not allow for clean seat of gasket which happened to me on 1 side.
Last edited by OptimusPriM5; 01-17-2019 at 01:20 PM.
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