| Motorcycle & Scooter Exhaust Pipe Seals Motorcycle & Scooter Exhaust Pipe Seals & Collector Box Seals. Sizes shown are - Outer in mm x Inner in mm x Length in mm. Front Pipe Seals and Rear Silencer Connecting Pipe Seals Muffler Gaskets also for between header to header pipes. Exhaust Joint Gaskets (Graphite Seal Rings) |