High quality intake rubber suitable for Yamaha RD350 YPVS models.
Has like the original Yamaha rubber a connection for the Yamaha YEIS (Yamaha Energy Induction System) Boost Bottle System.
If this is not used fix the supplied plug with sealant or superglue if necessary.
This rubber was also used by MB Developments for their diaphragm intake manifold of the Vespa Largeframe engines.