Genuine BMW 437M Alloy Wheels Diamond Cut For BMW F80 M3, F82 M4 & F87 M2Genuine BMW 437M 19 inch alloy wheels in Jet Black with a diamond cut finish. Achieve the perfect OEM look with the BMW 437M wheels seen on non Competition variants of the BMW F80 M3, F82 M4 and F87 M2. On used vehicles, these wheels tend to be either all black or all silver, having been curbed and refurbished. With diamond cut wheels, they can only be re diamond cut a couple of times and it's a more expensive process than a regular refurbishment.