Making incremental improvements is what got us where we are today. Looking at some product and thinking I could improve this if I just changed x is what builds a new product and probably patent(s). What Speedmaster did was an unashamed and blatant copy, leaving the logo in place. To do R&D to develop and test a new product is expensive. Part of the cost of an Edelbrock Performer RPM Airgap manifold for example. It takes very little to aquire a manifold and reverse engineer (copy) it and sell it at 1/2 to 1/3 the cost. Yes it hurts the wallet to buy original, but you are supporting your neighbors.
