Yes, it can be done. My signature should explain it all. I would use Mac cats with the prochamber if you decide to put cats on it. They are smaller than most converter and would probably work best with the prochamber.
I would think if you look at pictures and it looks possible, as in they look like they will fit and still be the same length in the end, it should be possible but, if they are not sold in public, either they will be, or the benefit the prochamber has over a catted X or anything for that matter, would be lost when you add cats to the prochamber. Maybe not but.... I did not see the above post, it took me THAT long to answer.
It is like a box instead of the h or x, pipes go in one end out the other As for inside of the box But it is supposed to be better than both. I assume offroad thus the other questions about putting cats on, but like it says above you can get it done. I do not think you can buy prochamber with cats, maybe, its a big world, but generally no.
The prochamber does not come with cats. You have to buy them seperately and have them welded into place. This is pretty expensive too. The cats alone with installation costed me about 300 dollars. Not to mention the price of the prochamber.
300 bucks? I was thinking of getting Magnaflow Highflow cats, and just cramp it in. I can get magnaflow cats for 57 bucks each, and if I choos to weld it in, my friend has mig welder, So I figured it'll cost me around 350~400 bucks or so...
Unless ofcourse, i can find magnaflow catted X for 350 or so...
Well, the magnaflow cats would probably work. I've seen them before and they will fit. I had to choose Mac's though cause of the Long tube header installation I was limited to room with the cats. You can probably find a Magnaflow catted x-pipe for under 400 bucks, Im sure of it. Check on E-bay and do an internet search.