Well its 2 weeks old. About 400 miles and the darn thing has been sputtering from day one. If I ease through the throttle it does not sputter but if i were to be at a dead stop or moving at 40mph and goose it, the sled will hiccup. I have been talking to all sorts or people looking for the answer and the only real thing im getting is that I need a $350 dyno programmer and problem solved. Anyone have this problem or does anyone have an answer to it. Ah to spend 10 grand and think it will run great, dont ya love it!