Hey guys my 2013 m1100 t started making a funny noise yesterday I only hear it when I get off the throttle and its idling down to a stop I sounds like the sled is making little backfires or something is sounds like it coming from the intercooler area I don't think it has anything to do with the drive train coz I can kinda hear it when I just rev it up and let it back down with out moving. If anybody has heard this please let me know I have hood off right now and I do t c anything out of place. Sled has a 2.5 sandale thanx