Folks I have a 98 RK with a Stage 11 and Slash Cut touring Mufflers. I just purchases a TFI so I have a three part question and looking for opinions. 1) I have read most post on the TFI tuning but I don't have a tack and I don't really understand what roll-on and some of the other lingo are. Any suggestion would be appreciated. 2) Although I don't mind the deep sound of the mufflers I'm not really a look at me kinda guy so I thought I'd put the originals back on. If I do will I have to bring it in to re-turn of will the TFI provide tuning as long as I do it after the change out? 3) If I do leave the Slash Cut's on there is alot of poping and back-firing. I mentioned it at the HD shop where I had a tune-up dine but it's still the same. Again will the TFI control it? Thanks very much.