BSA C15, B40 Silencer, Made in England NOT CHEAP IMPORT 

Polished Chrome, Part Nos:40-2786, 40-2762

Inlet Size: 1-3/8" 

Total Length: Approx 22-3/4"

Years 1961-1966  Frame Type: Swinging Arm

RH Fitment   Bracket sold separately Part No.40-2771.