Components that draw air into an engine for combustion. These systems play a crucial role in engine performance and efficiency. They include elements like air filters, intake manifolds, throttle bodies, and air intake tubes. Upgrades to these systems often focus on increasing airflow, reducing restrictions, and improving air filtration, resulting in enhanced engine power, throttle response, and fuel efficiency. Modifications can range from simple filter replacements to complete intake system redesigns, catering to both performance enthusiasts and those seeking improved fuel economy.