Sound Vespa 50 Special con 102 Polini rifasato e Zirri Silent - YouTube
Racing Exhaust ZIRRI Silent Corsa steel clear coated aluminium silencer left hand TUNING SPORT - powerful For race use only. Not admitted in the area of the German StVZO! | SIP-Scootershop
Racing Exhaust SERIE PRO ZIRRI SILENT CORSA Replica steel clear coated aluminium silencer left hand TUNING SPORT - powerful For race use only. Not admitted in the area of the German StVZO!
Zirri Angelo
Prototipo PX 225cc Angelo Zirri - test frizione Crimaz e smontggio - YouTube
Vespa 125 Primavera - Zirri grand tours sound - YouTube
Zirri Angelo
MARMITTA ZIRRI SILENT CORSE PER VESPA SPECIAL ET3 PK | eBay