Ok, I'm convinced this thing is a peice of crap. Yes it does provide great performance, but only when it is running. This thing cuts out on me after every 2-3 high speed passes. Today I was out with it and drained my starter battery on only a HALF TANK! Obviously, during the 2 year "reasearch and development" of the 2.5 engine, they didn't figure out a way to keep it from stalling ALL THE TIME. I'm going with the Sirio. I can't take the 2.5 anymore. Anyone with the Sirio? Does it cut out all the time like the 2.5?