Stock exhaust or aftermarket header?

[milkmaster_imp]

Bought my CB1100 this past spring. I always loved the sound of a Honda inline 4, but my current Cobra header gets a bit louder when the exhaust system gets hot. Too loud and sounding like a sport bike is not a desirable feature for me. I am thinking about going back to the stock exhaust. Tell me why this is a good or bad idea if all I want is to quieten the bike down a little.