2014 S10 base model here. Well, if OP had done a bit more research, he would not have found disappointment with the bike. 2014 doesn't need the ECU flash. Fast, powerful, no hiccups, smooth, no stalling, no non-starts after washing, etc., etc. In short, it simply sacrifices power for reliability and longevity. What a novel idea. Crank out more HP per cu. in. and bring out the wallet....and the down time.....and increase the danger factor. This ride is a full second faster in the 1/4 mile (11.6 sec.) than my previous 6 cyl. Honda Valkyrie (12.6) and does me just fine. Use S if you need it. The years have shown me that reliability trumps speed, but that very lesson had to be learned the hard way. Go buy the KTM young man, you'll be back.