Impreza 2.5 RS Coupe AWD F4-2.5L SOHC (2001)
Spark Plug: Service and Repair
Removal and Installation
#1 Spark Plug
REMOVAL
CAUTION: All spark plugs installed on an engine, must be of the same heat range.
Spark plug:
CHAMPION: RC10YC4 (Alternate)
CHAMPION: RC8YC4
NGK: BKR6E-11
NIPPONDENSO: K20PR-U11
1. Disconnect battery ground cable.
2. Remove air intake duct and resonator chamber.
1. Remove bolt which installs air intake duct on the front side of body.
2. Remove bolt which installs air intake duct on body.