The Racer X Fabrication rear strut tower brace for the 2023+ Toyota GR Corolla was designed to reduce weight while retaining rigidity. The OEM rear brace that is located behind the rear seats weighs just over 3 lbs, while Racer X carbon fiber rear brace is just under 1 lb. The brace is comprised of CNC machined mounts made from 6061-T6 aluminum, and bonded to carbon fiber tubing. The mounts are anodized black for an aesthetic appearance and finally, laser etched with the Racer X logo. The brace is designed to be reversible so it can be used with the OEM foam that is located below the trunk mat, or race mode without the mat and foam.