Skip to product information

IMSA Helmet Wiring w/ Coil Cord & RTM Mic for Road Racing



Regular price $278.00
Sale price $278.00 Regular price
Shipping calculated at checkout.

  • Fully secure checkout
  • Trusted by thousands
  • Rated and reviewed

Order by 3pm ET (Mon–Fri) for same-day shipping:

I18n Error: Missing interpolation value "end_date" for "Ends on {{ end_date }}"

Question about this product?

We're happy to help.

Complete IMSA helmet wiring with a mic that cancels up to 95% of background noise — built for road racing.

This is the full helmet wiring kit for road-racing cars like Porsches and formula cars: IMSA-style plug, coil cord, mono 1/8" headphone jack, and Speedcom's own patented RTM microphone. RTM technology diffuses ambient sound waves away from the microphone element, cancelling up to 95% of background noise — your crew hears you, not the engine.

  • Patented RTM noise-cancelling microphone — up to 95% background-noise rejection
  • Complete kit: everything needed to wire a helmet for IMSA-style comms
  • Coil cord stretches with head movement and stays tidy in the cockpit
  • Mono 1/8" headphone jack for ear buds or ear molds

Works with: IMSA-style car harnesses in road-racing cars (Porsche, formula cars, and similar).

Specs: IMSA-style plug · coil cord · mono 1/8" (3.5 mm) headphone jack · patented RTM noise-cancelling microphone.




IMSA Helmet Wiring w/ Coil Cord & RTM Mic for Road Racing

$278.00

Does it come with a warranty?

Add your collapsible row content here. If it's set to open one row at a time, consider keeping the content in each row about the same length.

What happens if I don't like it?

Add your collapsible row content here. If it's set to open one row at a time, consider keeping the content in each row about the same length.

How fast is shipping?

Add your collapsible row content here. If it's set to open one row at a time, consider keeping the content in each row about the same length.

What's the returns policy?

Add your collapsible row content here. If it's set to open one row at a time, consider keeping the content in each row about the same length.

Questions about this product?
Don't be a stranger.