SFI in drag racing stands for SFI Foundation , the nonprofit organization that issues and administers safety standards for racing and specialty automotive equipment.

In drag racing, you’ll most often see SFI on things like:

  • Fire suits.
  • Gloves and shoes.
  • Helmets and belts.
  • Clutch, bellhousing, and other safety-related parts.

The SFI label means the item was tested to meet a specific motorsports safety spec, which is why tracks and sanctioning bodies often require it.