Long enough to get just above the cab. I actually like powdercoat or paint better than chrome. I do have the tail pipe, though. Low miles, like the rest of my truck.
I have a 5" black stack. its a miter cut pipe actually. and a stack bracket from a peterbilt. dont know if its what your lookink for. its 42" I think, so if the bottom of it is flush with thebed floor its right at the cab
not the best pic but you can get the idea