cause that thing sounds sexy !

 

Buy one, actually the larger the diameter pipes the more hollow sound you will get and link them together it will sound better. unfortunatley that means your exhaust system will cost ten times more than your vehicle is worth.
If you do it correctly.

But I like the sound of a stock big block exhaust myself. Everyone at the gas station looks at me when I start it (it's a dump truck by the way). It's not loud, it's stock, but is sounds Hollow and deep. also it helps to have a 7.4L Monster at the other end of those pipes. I think it gets 4galons per mile I am too busy paying for gas to check