Quote:
Originally Posted by camaro12rs
I'm in the same boat, gonna be cleaning my IM soon and will be changing the spark plugs when I do. I found the AC Delco plugs on Amazon for $5.63 plus a $3 rebate per plug, so only about $16 for all six.
ACDelco 41-109 Professional Iridium Spark Plug (Pack of 1) https://www.amazon.com/dp/B001KSEGI8..._htjOyb3SCB5MM
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For that price, if you're taking the Original plugs out, it's a no brainer to go ahead and change them out. $18 for new iridium plugs is cheap