Porsche GT3 belts are designed specifically for street cars with Porsche’s factory one piece carbon buckets. The lap belts use specific sewn-in brackets that fit perfectly on the factory mount. A standard belt would require additional fabrication and a spacer to make them work with the factory seats. These are a bolt-in replacement which is much easier. The Porsche GT3 Profi 2x2 features Frontal Head Restraint (FHR) specific 2” shoulder belts, 2" sewn GT3 laps, and an adjustable T-bar sub strap. The full 2" shoulder webbing fits perfectly on a FHR device, creating optimal force distribution on the surface of the device. If you drive a GT3 Cup car or are driving a Porsche with a fixed back race seat, a standard non Porsche specific harness such as the Enduro 2x2 or Flexi 2x2 would be better suited for your vehicle.
TO ENSURE AN ACCURATE FIT, use this chart to order your correct helmet size. Carefully measure around your head, above the ears. Take the measurement, in inches or centimeters, referring to the sizing chart below for your correct hat/helmet size. Helmet must fit properly for optimum performance. Don't guess your size. Helmet must be securely and snugly fastened before engaging in any activity.