I want to make dumps for my 2 chamber flows. I'm thinking about cutting a hole on the muffler and welding the rounded ends of a 55 gallon drum in place of the hole. The theory being is that i can unscrew the cap and have the exhaust be louder, and then recap the hole when i don't desire the loud exhaust (when i'm with my wife). Does anyone see a problem with this or would this be a great idea instead of having a permanent set of dumps installed? Does anyone have pics of this? The whole point of all of this is to get my exhaust louder.