I'm interested in putting Supertrapp slip-on's on my '79F like Mashermoto did. He had Mac headers, I have OEM.
Does anybody know the OD of the pipe AFTER the crossover? Is it necessary to cut the pipes BEFORE the cross-over?
Supertrapp lists their pipes on their muffler ID.
Does anybody know the OD of the pipe AFTER the crossover? Is it necessary to cut the pipes BEFORE the cross-over?
Supertrapp lists their pipes on their muffler ID.