Our straight exit merge collectors are ideal for the fabricator who wants to either leave the header as an open header design or finish it off with a flange. We supply the collector with a straight section of tubing that is welded on right at the collector merge. Available in a variety of primary inlet and merge sizes, these merge collectors are handmade using American made bends.Engineered to obtain the high flow and velocity only available in a true merge collector, every unit is purge tig welded and incorporates a transition spike that is internally blended. This internal blending and spike design makes the transition from the primary tube to the collector, as smooth as possible. This smooth transition maintains exhaust velocity, improving volumetric efficiency.