Impreza WRX STI F4-2.5L DOHC Turbo (2007)
3. Disconnect the connector from ignition coil and ignitor assembly.
4. Remove the ignition coil and ignitor assembly.
5. Remove the spark plugs with the spark plug sockets.
LH SIDE
1. Disconnect the battery cables, and then remove the battery and battery carrier.
2. Disconnect the connector from ignition coil and ignitor assembly.