Original exhaust for Piaggio SI PTT 6557 mopeds.
The exhaust features a catalytic converter and thermal protection.
Original Piaggio spare part. NOS – New from old stock.
Original Piaggio spare part number: 257753
| Manufacturer | Piaggio | 
| Material | Steel | 
| Surface | varnished | 
| Color | black | 
| Ø outside | 80 mm | 
| Total length | 760 mm | 
| Ø Silencer | 64 mm | 
| Ø Internal connection | 22 mm | 
| Mounting type | Welded lug | 
| Flame tube attachment | Plug connection clamped | 
| Number of fixing points | 1 pcs | 
| Ø Flame tube outside | 22 mm | 
| Exhaust type | Cylindrical | 
| Piaggio | Si | 
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