Today I decided to clean my EGR pipe and surrounding valves using a wire brush and some general brake carbon cleaner. \n\nMy car has done 86,000 miles with full Lexus history 2012 F sport. \n\nIt was fairly easy to do. I followed this YouTube video. \n\nHave you any of you guys done it yet. I’m hoping this will help prevent any head gasket issues. \n\nHow often would you recommend cleaning the pipe and surrounding areas?