Webra 50 GT from Quantum is $129 and no shipping. I love mine (Horizon fixed a sticking throttle). It turns a 12.25x3.75 with no hesitation in spool up and I don't even have it perfectly tuned yet.

I've gotten a bit of "too loud" commentary at the field. The muffler is straight through. I think the sound is great, but am thinking of putting on a MCP.

Just haven't figured out which Mac header to get. I think it's the same as the Super Tiger and Webra 40. Anybody know? Part number?