Sito Plus is a range of exhausts by the proven manufacturer Leo Vince that don't look overtly sporty but give a great boost in your scooter engine's usable power. They've kept it simple, sober and effective. Quality and reliability are outstanding, and in most cases they don't need carb tuning - plug and play!
While the standard Vespa exhaust works fairly well, you can look forward to more acceleration and better hill climbing, as well as higher top speed potential after replacement. This is also a mile cheaper than original while looking close to original! Suits Vespa 2 stroke 49cc scooter models:
LX 50, LXV 50, S50
Other Vespa 2t 50 models using the same horizontal engine. It should fit the other Piaggio based 2t 50 motors too, but could lack necessary mounting points for rear mudguards etc. Note carb jetting at least needs to be checked after fitting this to ensure the engine doesn't run lean.
This exhaust when set up correctly will increase power output from your engine. If required rejetting/roller tuning must be done by a qualified mechanic or experienced person.