Preey 5 Report post Posted March 23, 2015 Hope I'm in the right place here, I'm a newbie looking at buying my first BMW. The 2006 323i I'm looking at has, of course, 2 exhaust pipes, one seems grey/black inside, the other is white, I guess these are coming from the final stage muffler. Should I be concerned, I have read reports about white coloured pipes indicating head gasket or cracked head? Quote Share this post Link to post Share on other sites
