See also:

Catalytic converter
Turbo models Non-turbo models The catalytic converter is installed in the exhaust system. It serves as a catalyst to reduce HC, CO and NOx in exhaust gases, thus providing cleaner exha ...

Turbocharged Power
The 2.5-liter four-cylinder engine from last year's WRX really is a hoot to drive, and it's just as strong in the 2009 Impreza 2.5GT. Whether you're cruising around the city or driving on the high ...

Moonroof – if the moonroof cannot be closed
If the moonroof cannot be closed with the moonroof switch, you can close the moonroof manually. 1. Remove the plug on the roof trim of the cargo area by inserting the end of the flathead sc ...