Allstar Performance Swedge Tube - Black - 3/4" Steel 1" O.D. x 23" Long Crankcase Evacuation System The microphone boom shape has

The microphone boom shape has been improved to further deflect cabin noise

3-Pump and 6-Pump refers to the amount of pumps of the handle to lift the tires off the ground of a typical stock car

ORB port plugs are the only way to correctly seal unused ORB ports

A durable cushioned interior wicks away moisture

Allstar Performance Swedge Tube - Black - 3/4" Steel 1" O.D. x 23" Long Crankcase Evacuation System The microphone boom shape hasSwaged D. O. M. tubes are black zinc coated. 3 4" O. D. tubes are . 065" thick. 7 8" O. D. tubes are . 083" thick. 1" O. D. tubes are . 095" thick. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and practical items available from