10. The box section for the intake system was installed next. After the stock air cleaner lid and intake tube are removed, it simply replaces the factory air filter lid. The stock air cleaner base is left unchanged. After that, it’s a simple matter of slipping on the Airaid tube and the reusable, high-flow air filter. You don’t need an engineering degree to do this swap. The most crucial part of the intake installation is the replacement of the mass airflow sensor. It is simply removed from the stock intake and swapped into the Airaid tube.