Sounds like the question I have so maybe someone can give me knowledge from the past. I have an 05 stock speedmaster that I recently bought. I put BUB slash end pipes (End at the center of the real wheel. I wondered what the OEM jets were and what size should be put in as a result of the new pipes...(Which sound fantastic by the way)...I am not sure if the previous owner did anything so the more I know about what the stock sizes are and what should be in there I can discover whether or not they are orig or changed to something close. I will also be taking the AI off if it is still there. What am I looking for to see if it is still connected. thanks Keith