Schroth Porsche GT3 Profi II 2x2 Racing Harness for Carbon Bucket Seats

The Schroth Porsche GT3 Profi II 2x2 Racing Harness is specifically designed for Porsche street cars equipped with factory One-Piece Carbon Bucket Seats. Unlike standard racing harnesses, this GT3-specific harness features custom mounting hardware that fits perfectly with the factory seat mounting points, allowing for a true bolt-in installation without modification.

Engineered for both track performance and street compatibility, the GT3 Profi II 2x2 harness delivers improved driver safety, comfort, and restraint performance during high-performance driving and track days.

GT3-Specific Design for Porsche Carbon Bucket Seats

What makes the Porsche GT3 harness different from standard racing harnesses is its sewn-in lap belt brackets designed specifically for Porsche carbon bucket seats.

Most traditional racing harnesses require additional spacers, brackets, or fabrication to fit Porsche factory seats. The GT3 Profi II harness eliminates this issue with hardware that aligns directly with the OEM mounting points, making installation simple and secure.

This makes it an ideal upgrade for Porsche owners looking for a professional motorsport-grade harness system without modifying their interior.

FHR-Compatible 2" Shoulder Belts

The harness features 2-inch FHR-specific shoulder belts designed for use with Frontal Head Restraint devices. The narrower webbing fits perfectly on the FHR device, ensuring:

• Optimal load distribution
• Increased driver comfort
• Improved safety during high-impact situations

This design makes the GT3 Profi II 2x2 harness suitable for track day enthusiasts, high-performance driving events (HPDE), and motorsport applications.

Key Features

• GT3-specific harness designed for Porsche carbon bucket seats
• Direct bolt-in installation using factory mounting points
• 2" FHR-compatible shoulder belts for improved safety
• 2" sewn-in GT3 lap belts
• Adjustable T-bar sub strap
• Motorsport-grade construction
• FIA 8853-2016 homologated

Harness Components

Shoulder Belts

• 2" width
• Pull-down adjustment

Lap Belts

• 2" width
• Pull-down adjustment
• GT3-specific sewn-in hardware

Sub Straps

• 2" width
• Pull-up adjustment
• Adjustable T-bar design

End Fittings

• Shoulder Belts: LV10 with B14 snap-in bracket (wrapped-in)
• Lap Belts: Sewn-in B43A GT3-specific hardware
• Sub Straps: LV10 with B14 snap-in bracket (wrapped-in)

Included Hardware

• (6) SG23 7/16" Eyebolts
• (2) SG39 Backing Plates
• (12) S3 Wavy Washers

FIA Certification

The Porsche GT3 Profi II 2x2 harness is certified to FIA 8853-2016 safety standards, meeting professional motorsport requirements for driver restraint systems.

Compatibility

Recommended for:

• Porsche street cars with factory One-Piece Carbon Bucket Seats
• Track day and high-performance driving events

If you are using a Porsche GT3 Cup car or a vehicle with a fixed-back race seat, a standard racing harness such as the Enduro 2x2 or Flexi 2x2 may be more suitable.