My 1975 cb750F has a lovely stainless exhaust system. Today I removed it (using it on the Rickman) and realized it’s 4-2-1. It’s a great design, keeps it tight up under the motor. I always assumes it was a Delkevic, but all their systems I see now are 4-1, with a single collector. Also, the spigots are light weight stainless too, but bolt in the same way as stock ones (on studs). The headers slip on and are located with springs. Did Delkevic make other styles in the past? The tail pipe and muffler are by Hindle, so maybe the entire system is one of theirs?
