Straight answers on
safety gear
SFI vs FIA, Snell ratings, seat fitment, and why we refuse certain installs. Written by the crew, not a content farm.
What is the SFI rating?
The SFI rating comes from the SFI Foundation (SEMA Foundation, Inc.), a non-profit that issues and administers standards for specialty and racing equipment. Products with an SFI rating have been laboratory tested and certified.
You will see specs like 3.2A on racing suits: that rates how long the suit protects against second-degree burns in an approximated car fire (1800-2100°F). Other gear uses different prefixes, such as 3.3 for shoes and gloves.
| Rating | Approx. protection time |
|---|---|
| 3.2A/1 | 3 seconds |
| 3.2A/5 | 9.5 seconds |
| 3.2A/10 | 19 seconds |
| 3.2A/15 | 30 seconds |
| 3.2A/20 | 40 seconds |
Watch out for fake SFI conformance labels on off-brand equipment - odd fonts and typos on the label are a giveaway. Buy from an authorized dealer.
What is the FIA rating?
The FIA (Federation Internationale de l'Automobile) is a non-profit association of 222 national motoring organizations across 130 countries. Gear stamped "FIA Homologated" has passed the FIA's testing standards for performance, quality, and safety.
Sites claiming a product passed tests by the "FIA Federation," "FIA Inc.," or "FIA USA" are likely fraudulent or misinformed - those organizations do not exist.
What is the difference between Proban and Nomex?
Nomex is woven or knitted from inherently fire-retardant fibers, so its protection does not diminish with time or washing.
Proban, usually cheaper, is cotton chemically treated to be fire retardant. The treatment washes out over time, and there is no way to tell when a suit has lost its protection.
What is Snell?
When Pete Snell, a popular racing driver, died of head injuries from a helmet failure in 1956, a group of friends, scientists, and physicians created the Snell Memorial Foundation to research, test, and develop standards that improve helmet effectiveness. Snell ratings (like SA2025) are the benchmark for auto racing helmets.
M-rated vs SA-rated helmets - which do I need?
Put simply: M-rated helmets are for motorcycles, SA-rated helmets are for auto racing.
M-rated helmets protect you when you fall off a bike and slide. SA-rated helmets are tested for impact, retention, faceshield penetration, and flame resistance - sealing out fire and protecting your head against a roll cage. The SA standard requires flame-resistant, self-extinguishing materials; M-rated helmets are not flame tested. Most trackday and racing organizations require SA.
Which brand of racing seat should I buy?
The one that fits you and keeps you safe. We stock well-known, proven brands and 20+ seat models you can actually sit in at the shop.
Beware counterfeit seats. A seat's whole job is keeping you alive; an off-brand with a questionable history is the wrong place to save money. Call us with questions about any specific brand.
How do I pick the right seat size?
Start with you: height, weight, waist width, and shoulder span if you have it. Those numbers narrow the field to a handful of seats, then you sit in them. The right seat is snug without pinching, and your shoulders should not cover the strap guides.
Bring your measurements to the shop and we will fit you in person.
Does my seat have to be FIA rated?
Match the seat to your use. Many trackday organizations require FIA-rated seats, and some require containment (halo) seats. Check your org's rulebook - and either way, buy from an authorized vendor to avoid the fake seats floating around eBay and Amazon. We always recommend FIA-rated.
Why won't you install a racing harness with my reclining seat?
Because it can kill you. Reclining seats rarely have a proper slot for the 5th/6th harness point, so the harness cannot do its job of preventing you from submarining under the dash. Reclining seat backs also fail backwards in crashes - a tightened harness then goes slack and you are loose in the car. And in a rollover, a locked-upright harness holds your neck against the collapsing roof, where a stock three-point belt would let you move away from it.
Why won't you install a fixed-back seat with my OEM seatbelt?
Most racing organizations ban mixing a racing seat with a three-point belt. Manufacturers spend millions making OEM belts work with OEM seats; a bucket seat's bolsters hold the belt off your body, so it no longer lies flush where it was designed to. That combination is unsafe, so we will not do it.
I was in a racing incident. Should I replace my seat?
If the incident involved an impact with a wall or another car that could have stressed the seat: yes, replace it. A stressed seat can fail in the next hit, and it is not worth the risk.
Will you sponsor me and my car?
Yes - we sponsor drivers. Send a proposal with your background, your car, and our return on investment through the project form or the Chat button (at the top of the page, or in the Menu on a phone).
I ordered the wrong size. Can I exchange it?
If you ordered on your own without consulting us, you cover return shipping. If we sized it together and got it wrong, we pay the return shipping. Full details are in the return policy on our store.
How do I get started in motorsports?
Come talk to us - it is our favorite question. The short version: pick a local organization running trackdays or autocross, get your car through their tech requirements (we can help), and start with the gear your org actually requires before buying everything in the catalog. We know the Arizona scene - PIR, the local orgs, which events are beginner-friendly - and we will point you at the right first event.
Still unsure?
Gear questions are exactly what the shop phone is for. Call (512) 766-5438, chat with the crew, or come sit in some seats.