hello! I decided to add some information, remove the ring limiter, change the maximum gicleur to 64, remove the limiter input air in the carburetor, you can replace the exhaust but not necessary to do so, simply remove the elbow which is the curve of escape. the wasp will be much better. in Portugal there is a sale with the color orange "Taormina", you should ask conessionario Vespa can order, because that would be produced.