Home » 500HP 2016 BMW M4 GTS Is Hottest-Ever Bimmer Track Special, But Road-Legal and Coming to USA! » M4 GTS active splitter M4 GTS active splitter Home » 500HP 2016 BMW M4 GTS Is Hottest-Ever Bimmer Track Special, But Road-Legal and Coming to USA! » M4 GTS active splitter