Should I change my Spark Plugs myself? So I have reached 70,000 miles this months and I have not changed my Spark Plugs yet. I looked at a few youtube tutorials and they looked simple and straightforward, but I don't know if I trust myself tbh. It looks like I just need the right Torque Pressure. Also, Is the Part number for the Spark Plugs 270 159 0700 and is it basically the same thing as the NGK SILZKFR8H7S?
I watched these two youtube videos:
Anyone here replaced their own? Should I try it out? or have the dealership or a shop replace them for $300-400 for a service that takes 30-40 minutes? Also, Should I buy the plugs from the dealership or do you guys have recommended sites that are not amazon/ebay?