Rugged Radios UHF Antenna Kit with 1/2 Wave No Ground Plane (NGP) Antenna & NMO Mount 57-58 High compression race engines require

High compression race engines require "indexing" of spark plugs to prevent contact between piston dome and the ground wire of the spark plugs

rather than meets

DMI Gladiator U-Joint Assembly - 2K11 H

63A-Voltage: 9-32V-IP Rating: IP68-Dimensions: W - 6

Rugged Radios UHF Antenna Kit with 1/2 Wave No Ground Plane (NGP) Antenna & NMO Mount 57-58 High compression race engines requireSimple kit combines what you need for antenna replacement in the field. Includes NGP (No Ground Plane) UHF 1 2 Wave antenna and 3 8" NMO style cable mount with 15 feet of coax cable. "No Ground Plane" means the antenna does not have to be attached to a metal surface (such as a vehicle roof or larger body panel). Although using a ground plane is always better, this NGP antenna performs great for all uses, drivers, teams, and applications. Molded high