Is this a Denco?

A stainless 4 into 1 is a set of pipes made out of stainless that are 4 different pipes that come together in a collector to make them join together as 1 pipe and if this pipes was for sale I would buy it. The stainless has a home now

I haven't slid the collector-baffle of the pipes in years but I think it has a restrictor and or a goilet in the union there....