Header Collector, Steel, Slip-On, 2 1/8 in. Primary Tube Diameter, 4.00 in. Collector Diameter, Each

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.