I was attempting to change my plugs today. I started with the driver front and it will not budge. I was afraid of stripping it out. I know these cars have aluminum heads. Should I try again and use extreme force, or should I let the shop do it? They said they would change them for $20. (labor). Plugs cost me $20, so I would have $40 in this task if I get them to change.

I think the plugs are original. It is ludicrus.