Braum's universal harness mounting bracket B Pillar [Door Side] is designed to allow you to install both factory seat belts and aftermarket harnesses at the same time. Intended for using quick disconnect lap belts on both sides of the seat.

This is a perfect setup for your street/track car. The bracket design does not require any drilling, you can simply attach the factory seat belt to the mounting bracket. Additional hardware {7/16″ – 20 hex nut} might be required to complete the installation.