[JimD]

This is probably in the youtube but you definitely do not need a special socket for a n52. I couldn't locate my spark plug socket so I just used a regular deep socket that fit a new plug (don't remember size). Mine were not especially tight but I used my harbor freight 3/8 ratchet that extends to breaker bar length when you need extra torque. So even if they were tight I would not have noticed it much with the extra leverage. Because I was using a regular deep socket, I had to use needle nose pliers to remove the plugs. No big deal.

My old ones were NGK as were my new ones. I just ordered them from RockAuto. Work fine. NGK does not recommend anti-seeze so I did not use any. I did torque to 18 ft lbs. I don't use my 3/8 torque wrench much and it was a good excuse to get it out. You could use a 1/2 but it is a pretty low torque for a 1/2.

Once you have access to the plugs, replacement is simple. Removing all the junk over the plugs is the work. But it is still a 2-3 hour job for me.