Just took off the hack job stacks off my 1-ton. Was wondering if anyone has used 4" flex pipe to run their exhaust out the back? I used it and seems to be a nice straight shot, no hard bends. Put a 4" tip just under the bumper, painted everything flat black and fabbed up some strong hangers. Just wondering if it will last or just a temporary thing?

 

my opinion is that it would probably be temporary.