Kenworth X15 Adding Dual Exhaust

Question for anyone who may know or has done it. I recently bought a 2018 t800 extended day cab with an x15 and a single exhaust stack. I have noticed that most (if not all) of the daycab kenworth X15s have a dummy exhaust on the driver side, and the passenger side is hooked up. Has anyone either found or made a y-pipe that will work to get on top of the DPF and still get under the cab on a t800 or w900 Daycab? Eventually it will likely go through the DPF weightloss program, but for now it will remain as is. I noticed the Paccar Engine runs a Y-pipe over to the driver side, but by my eye it is a little different angle. Looking to see if anyone has any advice or a source of the proper Y pipe so I can add a functional stack to the driver side.

Thanks In advance