Merge Collectors and Transitions
Merge Collectors and Transitions

We stock an extensive selection of collectors for any and all racing applications.
- 2 Way, 3 Way, 4 Way, and 5 Way Merge Collectors
- Y Merge Collectors
- Large Daimeter Merge Collectors
- Reverse Cone Colelctor Transitions
- Offset Merge Collectors
- Round Collector Transitions
- Oval Collector Transitions
- Tapered Collector Transitions
Merge Collectors
Our 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 degree merge angles
- 15 degree merge angles
- 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!
Our merge collectors are available in:
- Mild Steel
- 304 Stainless Steel
- 321 Stainless Steel
- 625 Inconel
PRO-FAB's merge collectors 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 icon above 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!
*Prices are subject to change without notification.