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NGK spark plugs S4
Can someone give me the EXCACT code for NGK plugs for my S4. OEM Champions are stupid money.
Tried iridium and they sooted up and were oily very quickly, so want to go back to NGK. Ordered a set online however the little nipple thing on the top was fixed and I need to get it off. I thought you could screw off for most spark plugs!
Thanks
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