Stilo ST6 GTN 8860 Carbon Helmet

The Stilo ST6 GTN 8860 Carbon Helmet represents the absolute pinnacle of GT and circuit racing helmet technology — an ultra-lightweight carbon fibre shell certified to the elite FIA 8860-2018 standard, the highest homologation available, combined with integrated radio electronics, dynamic noise-cancelling microphone, factory-fitted HANS posts, and a removable sun visor. For professional GT and endurance competitors who accept nothing less than the best.

Key Benefits

• FIA 8860-2018 certified — the highest homologation standard available, exceeding FIA 8859-2024
• Ultra-lightweight carbon shell — maximum protection at minimum weight for GT and endurance racing
• Complete GT package — integrated electronics, HANS posts, and removable sun visor all included
• Professional-grade protection — used at the highest levels of international GT competition
• Integrated radio electronics — dynamic noise-cancelling microphone and built-in radio connection
• Backed by 50+ years of expertise — radio engineers and motorsport communications specialists since 1975

Who Is This Helmet For?

• Professional GT and endurance racing competitors requiring the highest certification available
• Competitors in events mandating FIA 8860-2018 certification
• Drivers who want the absolute best in GT head protection with integrated comms and HANS posts
• NZ and AU competitors at the top level of national and international GT competition

How Does It Compare?

Key Features

• FIA 8860-2018 certified — highest homologation standard for circuit helmets
• Ultra-lightweight carbon fibre shell
• Integrated radio electronics — adjustable dynamic noise-cancelling microphone and built-in radio connection port
• In-ear speaker connection with integral wiring and connector
• Advanced ventilation — chin bar and top shell channels
• Wider aperture for improved downward visibility
• Removable sun visor — additional short visors available separately
• Drinks system ready
• Factory-fitted FHR / HANS posts included

Earbuds vs Earmuffs — Which Should You Choose?

Select the audio connector that matches your intercom system and racing environment.

• EarMuff / Speakers — Large padded ear cups with built-in speakers that sit over the ear. Best for noisy environments such as Circuit, rally, speedway, drifting, and off-road racing where ambient noise is high. Provides passive noise isolation alongside clear audio. The most popular choice for Rally Intercom and Radio use in loud cockpits.
• Stilo Earbud Connector — Stilo’s own proprietary push-lock connector, exclusive to Stilo helmets. Not compatible with third-party Earpieces and earbuds without an adapter.
• 3.5mm Mono Connector — The most widely used audio connector in New Zealand, Australia, and the USA. Compatible with the majority of aftermarket Earpieces and earbuds, and radio setups in these markets. The go-to choice if you’re running a non-Stilo Custom Earpiece or upgrading from an existing system.
• RCA Connector — Predominantly used in European Race Teams and systems. Check the audio input type — RCA is the standard connection in many European-market race communication systems.

Not sure which connector suits your setup? Contact us and we’ll match you to the right option.

Frequently Asked Questions

What is FIA 8860-2018 and why does it matter?

FIA 8860-2018 is the highest homologation standard for closed-face racing helmets, exceeding FIA 8859-2024 in impact energy absorption, penetration resistance, and fire protection. It is mandatory at the highest levels of international motorsport and is the gold standard for professional GT and circuit racing.

Is the ST6 GTN 8860 Carbon legal for MSNZ and Motorsport Australia GT events?

Yes — FIA 8860-2018 exceeds FIA 8859-2024 and is accepted at all levels. Always check your specific event regulations.

Does this helmet include HANS posts?

Yes — factory-fitted FHR / HANS posts are included as standard.

Can I use this helmet with my existing intercom system?

Yes, in most cases. The ST6 GTN 8860 Carbon includes Stilo’s proprietary connector. If your intercom uses a 3.5mm mono or RCA connection, an adapter is required. Contact Harris Race Radios to confirm compatibility.

How do I choose the right size?

Measure the widest circumference of your head above the ears. When in doubt, size down. We offer bespoke in-store fitting at Harris Race Radios.

Homologation

FIA 8860-2018 certified. For full technical specifications visit stilo.com.

Sizing

Available XS through XXXL. Measure the widest part of your head above the ears. When in doubt, size down. Contact us to check stock availability.

Harris Race Radios is the Authorized Motorsport Helmet Dealer for New Zealand and Australia — radio engineers and motorsport communications specialists with over 50 years of experience in the industry since 1975. Trusted by competitors from club days through to professional championship events. All helmets are genuine, warranty-backed, and ship fast across NZ and AU.