See also:

Overview
Subaru of America introduced a new 4-door version of the Subaru Impreza WRX STI performance flagship model. This will be the first time that the Subaru Impreza WRX STI has been offered in two body ...

Spark plugs
It may be difficult to replace the spark plugs. It is recommended that you have the spark plugs replaced by your SUBARU dealer. The spark plugs should be replaced according to the maintenance ...

CHECK ENGINE warning light/Malfunction indicator lamp
If the CHECK ENGINE light illuminates while you are driving, have your vehicle checked/repaired by your SUBARU dealer as soon as possible. Continued vehicle operation without having the emission ...