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Rugged Radios

Rugged Radios 4C IMSA Helmet Kit - Coil Cord, Mic & 3.5mm

Rugged Radios 4C IMSA Helmet Kit - Coil Cord, Mic & 3.5mm

Regular price $99.00 USD
Regular price Sale price $99.00 USD
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Shipping calculated at checkout.

SKU:HK-IFC

Available — ships in 1–2 business days

Quantity
  • Free shipping on orders $250+
  • Ships in 1–2 business days
  • 30-day hassle-free returns
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Key Features

  • Configuration: 4-conductor (4C) IMSA plug
  • Cord: coil
  • Microphone: dynamic noise-cancelling on a full-flex boom
  • Audio out: 3.5mm (1/8 in) jack for mono earbuds (earbuds not included)

The Rugged Radios 4C IMSA Helmet Kit (HK-IFC) is a wired in-helmet communication kit for sports-car road racing that uses a 4-conductor IMSA plug and a coil cord, with a dynamic noise-cancelling mic and a 3.5mm (1/8 in) earbud jack. It is used in series such as LMP2, GT3, GT4 and TCR and installs into most helmets.

Compatibility

Connects to a standard IMSA car harness using the 4-conductor (4C) plug. The coil cord retracts to stay out of the way. This version has an earbud jack and requires mono earbuds; it does not include helmet speakers. Does not fit a 3-conductor NASCAR harness. The mic boom and cable junction block install with hot glue or the Rugged Quick Mount (HK-QM, sold separately); it is not a plug-in-only install.

FAQ

What racing harness does this IMSA kit plug into?

It uses the 4-conductor (4C) IMSA plug and connects to a standard IMSA car harness. It does not fit a 3-conductor NASCAR harness.

Does it use earbuds or built-in speakers?

This version uses a 3.5mm jack for mono earbuds and does not include helmet speakers. For built-in speakers, choose the HK-IFSP speaker version.

How does the kit mount in the helmet?

The mic boom and junction block attach with hot glue or the Rugged Quick Mount (sold separately).

Specifications

cord
coil
audio out
3.5mm (1/8 in) jack for mono earbuds (earbuds not included)
microphone
dynamic noise-cancelling on a full-flex boom
configuration
4-conductor (4C) IMSA plug

Shipping & Returns

Free shipping on orders $250+ (standard items). Oversized items ship at calculated rates.

30-day returns with RMA required. 15% restocking fee, buyer pays return shipping. Defective items returned free with full refund.

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