03 with jardine slip ons... Pc3 USB. I just wrapped the pipes from the below the cans. Now it went from sometimes to allot of backfiring when I let off the throttle. It is not very loud but I still don't like it. Before me it was laid on it side, nothing major and just inspected everything when I changed oil today.(mobil1 4T) starts and runs flawless and has 9300 miles. I believe it might be a fuel mix mess up or an exhaust leak.. I am thinking about remappo g but not sure where to get the maps from or how to do it exactly.. Or scared just need the know how. Don't think it would hurt to do after I put some fresh nkg plugs in this week.. From my understanding I can tell if she has been running Lean from the spark plugs and remapping would be a good idea if that is the case right? Plugs should be tan? If I am wrong please let me know or if u have any ideas, I am open minded, btw I am still in south Korea so replacing the exhaust is not an Option now... Thanks.....