First let me indroduce myself.My name is Dave and been reading a lot.Lots of good information but cant find an answer to my simple question. I have 2007 roadking with stock head pipe with y pipe but have screaming eagle night sticks.Stage one download and high flow air cleaner.I hear the stock head pipe out performs true duals as far as low end torque.I was wondering just how much better?Would I notice?I ride two up most of the time.I run 13 disc on each side.Would I be able to subtract disc to get this torque back if there is a loss?Any comments are appreciated. Thank you.