I got the new one with the new style muffler on it, and it has one outlet pipe. I got a chance to run it today and it popped on the first flip, the second one and it was up and running! Wow this thing has some power. Didin't get a chance to tach it cause I didn't go past half throttle. I broke all three torque bolts from the prop shaft becuase I didn't tighten the prop bolt enough.

have some extras though... I have a 22x10 xoar prop on it and im gonna go out to the field maybe tommorow and run it some more and see if i get some radio interference.
Here are some pics, Oh, the tubing is not the gas type right now I had to order some from online, The LHS ran out of the size I needed... so i just ran it with the glow stuff for today