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Old 06-14-2024, 11:03 AM   #1
Drives: 2013 1SS
Join Date: Dec 2012
Location: New Jersey
Posts: 722
Changed the original spark plugs and wires at 183k miles

2013 L99, ordered late-2012 and picked up January 2013 with 13 miles. Dynatech headers and Jannetty tune at ~40k miles and a Roto-fab intake at some point later on. Oil changes at 10 - 20% remaining oil life. 93/94 octane all the way. This is my daily driver: it still idled smooth and pulled hard--I wouldn't have changed them if I didn't feel a slight stumble at WOT. I think the plugs look fantastic given their age. I replaced the plugs with AC Delco 41-162s. I replaced the stock wires with AC Delco 9748UUs, even though the originals came off intact. I put the heat shields back on also.
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Last edited by kevint; 06-14-2024 at 12:47 PM.
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Old 06-14-2024, 11:07 AM   #2
It don’t come easy.
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Drives: 2010 2SS RS M6
Join Date: May 2014
Location: WI
Posts: 2,272
Looks like a nice even color betwixt the plugs.
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