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post #1 of 19 (permalink) Old 05-04-2019, 08:23 AM Thread Starter
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Better spark plugs?

Worth it to get better spark plugs? I had NGK’s in my mustang and it made a world of difference in how it idled and ran. Much smoother combustion. So, what’s the best option for the challenger? 19 M6 RT
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post #2 of 19 (permalink) Old 05-09-2019, 03:31 PM
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NGK (6509) LTR6IX-11

Replaced my stock platinum's at 65,000 miles, so far so good.
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post #3 of 19 (permalink) Old 05-09-2019, 03:57 PM
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Originally Posted by AttackHelicopter View Post
Worth it to get better spark plugs? I had NGK’s in my mustang and it made a world of difference in how it idled and ran. Much smoother combustion. So, what’s the best option for the challenger? 19 M6 RT
NGK is the OEM for the plugs, so it should already those in it. Hard to beat those.

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post #4 of 19 (permalink) Old 05-09-2019, 04:06 PM
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put these in a month ago... love them



c
NGK IX Iridium

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post #5 of 19 (permalink) Old 05-09-2019, 04:44 PM
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put these in a month ago... love them



c
NGK IX Iridium
Are these the ones you purchased?
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post #6 of 19 (permalink) Old 05-10-2019, 04:48 AM Thread Starter
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Yup. The 4469’s. All 16 of em. The ones in the challenger from what I understand are just basic copper tipped ones. The IX’s are the max performance ones.
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post #7 of 19 (permalink) Old 05-10-2019, 05:11 AM
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There's 0 benefit unless your plugs are poorly gapped or fouled.

Same as the answer you got here: https://www.challengertalk.com/forum...-plugs-670351/


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post #8 of 19 (permalink) Old 05-11-2019, 05:08 AM
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There's 0 benefit unless your plugs are poorly gapped or fouled.

Same as the answer you got here: https://www.challengertalk.com/forum...-plugs-670351/
Agreed. I mean really, expecting to change plugs on a brand new car and expecting a performance gain? Silly silly.

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post #9 of 19 (permalink) Old 05-12-2019, 11:39 AM
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yes those are the ones, you will be happy with choice.
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post #10 of 19 (permalink) Old 05-13-2019, 11:53 AM
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I just reached 80k on my 2015 Challenger, thus I am looking to change out my spark plugs in the upcoming weeks. Wanted some feedback on those NGKs, thanks for sharing!
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