4C IMSA Wired Coil Cord Helmet Kit with Mic and 3.5mm Jack Replacement Parts NOTE: The center conductor inside

NOTE: The center conductor inside the NMO antenna stud is not solid metal and can be damaged if overtightened

weathertight connection for reliability and durability when it matters most

mega trucks

not afraid to race

1 Touch FM Radio

4C IMSA Wired Coil Cord Helmet Kit with Mic and 3.5mm Jack Replacement Parts NOTE: The center conductor insideDesigned for road racing, the IMSA Wired Helmet Kit delivers loud, race ready audio and clear driver communication. Trusted in open wheel and sports car series like LMP2, GT3, GT4, and TCR, this kit features a 4 conductor IMSA configuration and installs easily into most helmets. This version includes a dynamic noise canceling mic, full flex boom, coil cord and a 1 8" jack for connecting your preferred earbuds. Features: IMSA 4 conductor configuration