That's a funny story Gordo! I noticed I had left it when I got home. Luckily I had one from a truck that I parted out a few years ago.It still had a stub of 3" pipe on it.I SOOO lucked out on the exhaust! I went to the muffler shop and bought the last 6' of 3" pipe they had,a muffler,and a generic mandrel bent tail pipe.The crazy part is it was all the right length!I only had to cut about 2" off the very end where it sticks out the side too far. It sounds really good for a single,and the tuning seems perfect.We will see once the camper is hooked up.