Import tuning refers to the process of modifying a vehicle, typically a foreign car, to enhance its performance, handling, and aesthetics. This can involve upgrading components such as the engine, suspension, and exhaust system to achieve better speed, power, and overall driving experience. Enthusiasts often focus on specific aspects like turbocharging or supercharging the engine, improving airflow, and adjusting the vehicle's suspension for better cornering. Import tuning is popular among car enthusiasts who seek to personalize their vehicles and improve their performance on the road or track.