Custom Merge Collectors Our custom merge collectors are handmade using USA bends.Engineered to obtain the high flow and velocity only available in a true merge collector, these units are available in mild steel and 304 stainless steel. Every unit is purge tig welded and incorporates a transition spike that is internally blended, making the transition from the primary tube to the collector as smooth as possible. This smooth transition maintains exhaust velocity, improving volumetric efficiency.
