Cusco Power Brace Trunk Harness Bar – Toyota GR Supra (2020+)

The Cusco Power Brace Trunk Harness Bar reinforces the rear structure of the GR Supra, improving rigidity and reducing chassis flex under heavy load. This upgrade tightens handling feel, sharpens transitions, and enhances rear stability during aggressive driving. The integrated harness bar function provides a secure mounting point for proper racing harness setup. Constructed from strong steel with a durable coating, the bar installs cleanly using factory mounting locations. Ideal for track-minded Supra owners.