So I know that the 2011-2012 6.2L HDs come with a factory "performance tuned exhaust"... The first question I have is whether or not there is any difference between these exhaust systems and a factory exhaust system of the 6.2L Raptor. The reason I ask is because there are SO MANY more Raptor aftermarket exhaust sound clips online but very few HD clips. So I guess if I knew the HD and Raptor exhausts ARE the same, I would be able to have a better idea of the clips I've heard versus what will actually be going on my truck in the near future. Any knowledge/input/opinions are definitely appreciated... Thanks!