BMW M4 Hamann vs BMW M4 Hamann Rev Battle in one of the tunnels of Monaco! The grey BMW M4 Hamann is modified with the Akrapovic exhaust system .\r
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This video features two BMW M4 F82 Coupe, both tuned by Hamann Motorsport. The grey one is equipped with an Akrapovic exhaust system (612HP) and BMW .\r
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BMW M4s with three different exhaust systems make a little noise! Starting off with our stock Austin Yellow M4 from BMW UK, followed by the grey car with .\r
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This video features two BMW M4 F82 Coupe, both tuned by Hamann Motorsport. The grey one is equipped with an Akrapovic exhaust system (612HP) and BMW .