Okay, so I want to change out my spark plugs and I saw on www.ecstuning.com that they sell an extended 5/8" socket for changing the plugs. I have a regular plug socket that I've used on other vehicles.
Question 1: Do I need this extended 5/8" plug socket or will my regular plug socket work?
Question 2: I was thinking of buying NGK Iridium IX plugs. Has anyone used these and do they compliment the car fine? The manual says to only use plugs sold by the dealer.

Thanks for all the help. Oh b/t/w, I have a 98 Quattro 2.8L AHA V6 engine.