I have had an 07 Race Replica 450 Sherco since 08 and have loved everything about it except fuel economy which was running around 35 mpg, still I put a side tank on it and made do. A couple of weeks ago I was sitting late in my office and thought I would just send the Sherco factory a message asking about my problem . The very next day I had a reply suggesting I send my ECU and throttle body to the factory in France and they would see what they could do for me . I sent the parts along with a note saying that I ride at 5000ft and above and mainly do single track . My parts were returned in about a week just in time for a 500 mile ride in NM . Imagine my surprise when the Sherco returned more than 50 mpg every ride down there and now with both ignition maps working really well it is twice the fun to ride . Kudos to a good factory . Anyone else with a similar tale ?