Whats YOUR reasoning for wanting to do that? Personally, I think its a major error and looks ridiculous but thats me. If you look at various different BMW boards, you'll see hundreds of threads with pics of so called poseurs who put M badges on non M cars. Most other BMW enthusiasts arent too fond of that but again, it's your car. Still curious why you would want to do it though.

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2013 M5
21" DPE Super Concave, Meisterschaft GTC w/LXR midpipes, BMC Filters, Charcoal delete, H&R Springs, IND cosmetic pkg, M-Performance spoiler, Wrapped Roof, Hardwired V1, Coded
2013 X6 50i Msport
2008 Smart
2012 Jeep Wrangler Unlimited