i dont think it will harm the metal, but you will still have to sand after the clear is off.... if you need a hand let me know. After you use the paint stripper i would have no problem doing the sanding.
1987 325is(Midnight Tuning Tuned OBD I S52
) - Current Summer Car
2013 Ford Edge - Daily Driver
1985 318i - 1st Car (started it all)