Just turned 77k miles and ready to change the plugs. I read a couple of articles however I do have a few questions.

1. Bosch OEM appear to be the choice - what is the part number as I see many are listed by various people
2. Drivers side looks like pain as I have to remove the direct injection fuel ECU and harness
3. One guy stated to disconnect the battery - one sys not to - which is best?
4. I have all the tools with the exception of a torx socket for the coil bolts - what size is this?
5. Installation torque on the plugs and coil bolts

Many thanks Jeff