08' columbia exhaust ?

Hello, just curious if anyone can answer this. Any help is appreciated.
I have an 08' freightliner columbia with a Detroit 60. I'm interested in converting it to a dual exhaust system.
Would all I have to do is cut it, add in a Y pipe, pipe and elbows. Also I want to delete the muffler(s) and run 5"> 8" after the elbows.
Is this something that can be done, and will it mess with the dpf system at all?
Looks like I'll have to do dual out the bak of the cab, I have closed sides.
If duals are not an option, would I be able to do a straight single 5">8"outlet?
Thanks in advance.

 

Also if anyone knows of a solid company, or site. I'm looking for a chrome bumper as well.
Its the 3 piece wrap around design. I'm looking for a one piece and haven't had any luck.

 

Thank you. I honestly had no clue when it comes to trucks with dpf systems.
I seen a model a couple years earlier at a pilot the other day. He had a nice 8" dual setup that I liked. Ah well I can always chrome and light her up.

 

I wonder if there are any companies doing dpf deletes for these. I know a buddy of mine did his on a 06' international he's got. So far I'm hearing good things.