I have a Lambretta Series III that had an Indian big bore exhaust on it. Well, it eventually shook itself to bits, giving up the ghost a few months ago. Right about the same time, Jet 200 announced that they would be selling the new BGM Lambretta exhaust. Good timing! After waiting for them to arrive from Europe, I finally got one from my local shop, and just recently had time to start the process of installing it. I got all the old junk off the scooter, and proceeded to put the new stuff on. Alas, I found that the new header is a bit too wide to fit on my cylinder. It hits the cooling fins. Now I have to decide whether to cut the fins, or try to jam it on there as-is. Hmmmm, where's my Dremel tool?