Spent the better part of the morning a while back modifying my Pit Boss 820D, I had already added a Grilla control board. Since I want to get into cold smoking I bought an additional smoker box to add to my pit. But 1st. I had to remove stack and the stainless steel rack and tray from the end and mount the rack and tray to the front of the pit. I have long arms so mounting a fixed shelf was no problem since my cover wasn't going to work anyways. My timing was perfect, no sooner than I finished Fedex was pulling into the drive w/ my new smoker attachment. An hour later I was completed. Wasn't long before I fired this puppy up with a load of cheeses. Now I have endless possibilities for smoking food.