Optimize your power.
Dynatech ceramic slip-on collectors feature a formed long-transition 4-into-1 design for maximum power. These mild steel collectors are ceramic coated for the ultimate in durability. They have U-bolts located on the collector for easy attachment to any Dynatech drag race header, and an 18mm female hole designed for use with the crankcase evacuation systems.

Header Collector, Steel, Slip-On, 2 1/2 in. Primary Tube Diameter, 5.00 in. Collector Diameter, Each