Performance parts are automotive parts that are designed to improve the performance of a vehicle in terms of speed, acceleration, handling, and overall driving experience. Engine parts like turbochargers and air intake systems, throttle controllers, ECU tuning softwarelift kits and sway bars, and braking parts like high-performance brake pads and rotors are a few examples of performance parts. These components, which can be added in place of original equipment parts to improve a vehicle's performance, are often made by aftermarket businesses.