This engine has only been run on Cool Power 15%. I purchased this engine brand new and used it in a Cub with the pitts muffer after running it on a test stand with the stock muffer for a few tanks. The header and pipe was acquired for a profile project I never got around to doing. This engine is in really good shape. It's one of my last glow engines left as I've gone mostly gas. What's pictured is what's included. I do not have the original box anymore. $140 shipped to the lower 48. PayPal is my preferred payment method.