I've been having mucho problemas with my bike the past month or so. After a long ride, it just started lugging and cutting off on the way home. The engine will wind down like I've cut the throttle, then when I pull in the clutch the engine will just die. I have to put it at rest, let it sit a minute, the FI restarts, then I can start it up again. Then I'll last about 10 minutes till it does it again. Then 6 minutes, then 5 then 4 then 2. Then it's happening right after I start moving. The only way I made it home was to rev it way up and feather the clutch. This seemed to help a little, even though it was still lugging. This was all after having my muzzy slip on for about 3 weeks problem free. So my first reaction was to get a PCIII and dl a map. So I did, using the Two bro's slip on map from Dynojet. Things were going well, then after 2 more weeks it happened again. So my next fix was to take it in to the dealer. They test rode it, couldn't find anything on the diagnostics for a couple days, so I just took it back. Happens again. So yesterday I switch back to the stock exhaust. Just got back from running it hard with no problems. I still have to test it some more, but does that sound like a scenario that happens often with slip ons? I've never heard of a bike getting that f'ed up with such a small change in air flow. Plus the PC didn't help. Any ideas?