Note:The fit of the SITO PLUS units for the PK models scatters a little. Often the exhaust body comes lightly against the frame or the manifold has little distance to the tire.
Usually the mounting is done quickly with some adjustment work (e.g. bending the mounting straps). Please make sure BEFORE the final assembly and test drive that the exhaust fits perfectly. 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. Especially in the middle and upper rpm range it helps the engine up.
Due to its relatively inconspicuous appearance it is very well suited to put fast and touring engines on the ten inch scale. Due 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 converted to a 125-133cc cylinder.
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