If you look close it is small at the engine and tapers bigger then back down smaller, but seems not as small as the engine end. Or am i just seeing things...........Curt
what size exhaust are you running and if it is a 1" where are you getting the muffler?I've tried many different exhausts on mine and the one I like the most so far is the glasspack straight thru muffler. It's very quiet on idle but then sounds like a big bore when you open it up. Sorry I don't have a video of it right now. I used to run open header which I like but get tired of quickly due to the noise level and large amounts of attention.