Instructions
Uninstall Headers
Click on the "Garage" button in the menu bar located at the top of the application.
Click on the "Installed" tab within the Garage menu.
Click on the "Engine Externals" drop-down menu located on the left side of the Installed menu.
Click on the installed headers' icon or name to uninstall them.
Install Turbocharger
Click on the "Parts Shop" button in the menu bar located at the top of the application.
Click on the "Engine" tab within the Parts Shop menu.
Click on the "Turbochargers" drop-down menu on the left side of the Parts Shop menu.
Click on the turbocharger's icon or name to buy it. Parts are installed automatically when purchased.