Vespa PX125 150 166 177 180 LML POLINI Road Box Exhaust

Vespa PX125 150 166 177 180 LML POLINI Road Box Exhaust

The Polini Box exhaust is a very good alternative to the well known but aging SIP Road. The Polini outperforms it over the whole rev band, both in power and torque. The early and high torque application makes the Polini Box the ideal touring companion. The well thought out construction of the Polini exhaust makes it possible to keep the low and pleasant noise level of the system permanently.

The Polini Box is built a little wider for more volume but not higher than an original exhaust. This makes it a good choice also on vehicles with low ground clearance (Rally, Sprint and all with 8 inch tyres like VBB,VNB...).

The quality and fit is good, even the exhaust paint on the manifold lasts longer than average. Harmonizes very well with the BGM177 cylinder.

TIP: Choose 2-3 sizes bigger than the SIP Road

NOTE: The exhaust was designed explicitly for the PX models. On older vehicles, which were built before the PX series, it is possible that the stop plate of the main stand touches the manifold. Either modify it accordingly or check if a too long distance piece was mounted between shock absorber and frame (Sprint / Rally = 26mm). On the 125-150 cc engines of the Sprint, VBB etc. the engine block should also be provided with a hole for a through exhaust screw. Otherwise the exhaust will only hang on the rear bracket. This is not sufficient in the long run, because it can break off.