High Level Pipe goes outside the frame for BSA C15T, / B40
Outside diameter is  1-3/8"

Use Silencer ARMSB8H

These exhaust pipes are made by Armours in the UK.

Our HD pipes are triple plated the same standards we had in 1972, many of our customers tell us the pipes they bought from us in the 1970’s still look good
We believe our own make pipes are the best available, we use heavy gauge tube to prevent blueing and give long life.