Merge Collectors and Transitions

PRO-FAB stocks an extensive selection of collectors for any and all racing applications.

Merge Collectors

PRO-FAB’s merge collectors are manufactured using a coordinate measuring machine and fixtures from our tool & die department. This in-house advantage allows us better consistency in our product line. We stock 12, 15 and 20 degree merge angles in 4-into-1 and Y-collectors. Additional parts required to finish a collector, including collector transition and straight pieces are available in a multitude of angles, lengths and configurations, and are all available from PRO-FAB!

Our merge collectors, available in mild steel, 304 and 321 stainless, and Inconel 625, are engineered to achieve the high flow and velocity necessary to increase and broaden an engine’s torque curve and peak power. Each unit is Tig welded and incorporates a transition spike that is internally blended, making the transition from primary tube to collector as smooth as possible, thereby maintaining exhaust velocity, improving volumetric efficiency.

Other Types of Collectors

We also offer weld-on, formed and Y collectors for most racing applications. If you do not see what you are looking for, please click the custom button below and fill out the online form detailing your specific needs.  A PRO-FABrication specialist will contact you to discuss how we can best meet your collector needs.

PRO-FABrication welcomes the opportunity to provide you with all of your racing exhaust system needs!