4.3 L V-6 exhaust

I have a 4x4 S-10 that I want to turn into an offroader.  I want it to be off-road capable and on-road legal.  What I want to do with it is run regular headers an x pipe and dual 4-in stacks out the bed just behind the cab.  Anybody have suggestions on the best way to do this?

Custom exhaust shop. Thats probably your best bet. They can get it done right and quick and they have the benders and welders designed for the job.