You read that correctly, some jackwagon cut my particulate filter out of my exhaust. Any vendors on the site that can sell me a replacement unit or do I have to go to the stealership?
Sadly, our "consumer grade" pollution systems are not designed for practicality. My sympathies.
As for replacement, yours, depending on the model, is sold by GM as a complete "one-piece" unit, from its forward flange all the way to the end of the tail-pipe. My suspicion is, at the factory, it is installed on the frame BEFORE the body-drop.
GM will be happy to sell you a replacement for around $2,700. that will be a "bolt in" (that is, if the thief didn't damage your sensors and the related wiring, plumbing, etc. ( Good luck trying to install it as received from GM - my guess is you'd have to cut the exhaust pipe forward of the axle, install it in two or three piece sections with clamps.).
My concern about ANY "after-market" DPF is how you would connect it to the various sensors & their fittings. Did they damage or cut any of the wiring & connectors ?