Stilo Helmets ST6 GT Composite Helmet Details
- Manufacturer: Stilo Helmets
- Manufacturer part number: AA0800AF2X
- Homologation: FIA 8858-2015
- Certification: Snell SA2025
- Compatible shields: Stilo ST6 helmet shields
- Noise-attenuating earmuffs
Stilo ST6 Size & Measurement
Customers who typically wear a size 59 in other brands are often most comfortable in a Stilo size 61 (large shell). If you’re between sizes, many drivers prefer the tighter option for stability.
What’s Changing in SA2025 Auto Racing Helmets?
SA2025 helmets are here, and while the changes may not be groundbreaking, they represent an important evolution in motorsport safety. According to the Snell Memorial Foundation, the SA2025 standard is an evolutionary update from SA2020—not a complete overhaul. Unlike the M2025 motorcycle standard, which adds rotational impact testing, the SA2025 auto racing helmet standard does not include rotational force requirements.
Key SA2025 Helmet Safety Enhancements:
- Increased Impact Protection: SA2025 helmets are required to handle slightly higher impact speeds and achieve lower maximum peak G-force thresholds across all head-form sizes.
- Global FIA Alignment:Â These updated requirements bring the SA2025 standard into alignment with the new FIA 8859-2024 helmet safety regulation, creating more consistency across international motorsports.
In short: SA2025 helmets are designed to offer enhanced linear impact protection, making them the safest Snell-rated auto racing helmets to date. Whether you’re a competitive racer or a weekend track day enthusiast, upgrading to an SA2025-certified helmet ensures compliance with future racing regulations and gives you peace of mind at speed.
Stilo ST6 GT Composite SA2025 Helmet FAQs
Is this Snell SA2025 certified? Yes, this listing reflects SA2025 certification for U.S. auto racing.
What’s the difference between GT and FN? GT includes earmuffs for noise reduction and comms; FN is open-ear for maximum awareness and airflow.
Can I reuse ST5 shields? No, the ST6 uses its own shield family; choose ST6-specific shields and hardware.
Ships with signature required.




