I know the sound you are talking about.. it is a nasty sound between shifts.. when you get stage one that sound goes away completely.. The mopar exhaust is in my opinion the best "Real dual exhaust" on the market unless you are going with a 3" design
The pipe is straight with no resonator and goes into the muffler..
The pipe goes into the muffler and comes out two pipes in the back.. so each of the dual exhausts puts out aprox the same exhaust unlike most fake dual exhaust..
But back to your question of the sound.. I love my MOPAR dual exhaust and like I said when you put stage one on that burp between shifts goes away completly.. Tommy told me why one time.. think it is the sound of the waste gate closing? I dont want to put out wrong info.. but it does go away when you put stage one on.. plus man stage one kicks azz..
Adam
www.prototypepower.com