Rear Lower Side Brace Tie Bar set for left and right hand sides fits Mustang models from 2015 to 2023 equipped with 2.3L turbo or 5.0L engines.This structural reinforcement component connects the lower frame rails to enhance chassis rigidity and improve handling response.Designed as a direct fit replacement, it installs using existing mounting points without modifications.The bar is constructed to maintain alignment under stress and support the rear suspension system during dynamic driving conditions.Includes both left and right side braces for complete installation. This is an aftermarket accessory.Brand names and model numbers are referenced strictly for compatibility information.