NOTE: The fit of the SITO PLUS systems for the PK models varies somewhat. Often the exhaust body comes slightly against the frame or the manifold has little clearance to the tire. As a rule, installation is quickly completed with a little adjustment work (e.g. bending the mounting brackets). Please ensure that the exhaust fits perfectly BEFORE final fitting and test ride. Unfortunately, we cannot take back modified or used exhaust systems.
The SITO PLUS for the Vespa PK is the alternative to the original exhaust. The elaborate design of the PLUS is clearly based on the original exhaust system. It gives the engine a boost, especially in the mid and upper rev range. Due to its relatively inconspicuous appearance, it is very well suited for putting fast and touring engines on ten-inch engines. Thanks to its very wide usable speed range, the SITO PLUS can be used universally.
NOTE: PK80 models require the exhaust of the 50cc models unless they have been converted to a 125-133cc cylinder.
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