hello everyone,i am new to the sight & also new to triumph.i just bought a used 06 sprint 1050 with a ixil exhaust installed.took it for a ride last night and it seems to be popping back through the exhaust on decell.the previous owner stated he took it to a dealer in vermont & they put a off road map on it to match the pipes.i feel it is running to rich & the popping is unburned fuel.any info on this would be helpful.thank you very much for your help. i called my dealer today to make an appt. for fri. to check & make sure it has the proper tune & i will ask about the SAI,as i am reading it also sounds as the bike could be running lean,but when i removed the baffles they are jet black soot. thank you everyone for your knowledge & i will let you know what the dealer finds.