Greetings to all vespa lovers, I have px150e, presently uprated to a pinasco 177 witha 24mm oko carb on malosi reed valve and sito plus on the rear end, i know for a fact that the sito plus is bit small , can anyone tell what exhuast brand should i use?presently i can max the vespa at 120kph , i heard with a better exhaust I can achieve 125 to 130 kph , I am on a budget, so those exotic exhuast are out of the question. thank you giving any info [H]

Try the Simonini, I believe its the best of the cheapie expansion pipes.