Spark plugs - 6SpeedOnline - Porsche Forum and Luxury Car Resource

Nov 4, 2015 | 12:27 PM

jmorgan911

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Spark plugs

Any benefit to upgrading the spark plugs on the 991 TT/TTS once modified?

Nov 4, 2015 | 01:38 PM

PMNewton

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Quote:

Originally Posted by jmorgan911

Any benefit to upgrading the spark plugs on the 991 TT/TTS once modified?

I've been wondering too. Should we be running a colder plug?

- Patrick

Nov 4, 2015 | 02:35 PM

SamboTT@ByDesign

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We had great luck with the factory spark plugs. The key is always been keeping them young but I haven't seen a reason to upgrade yet.

Nov 4, 2015 | 03:31 PM

PMNewton

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Quote:

Originally Posted by SamboTT@ByDesign

We had great luck with the factory spark plugs. The key is always been keeping them young but I haven't seen a reason to upgrade yet.

How young is young? 10k miles? 20k? I wouldn't mind swapping them out while in under the car this weekend. I have 10k miles on mine.

- Patrick

Nov 4, 2015 | 03:35 PM

SamboTT@ByDesign

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They will last pretty long time. I would call Young under 20,000 miles in high boost conditions. Won't hurt. Actually we can check them out and see what they look like at the different mileage points.

Nov 5, 2015 | 04:50 AM

Karl911

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I just changed mine at 30 K mi.
I had Chapion Motor Sports do it and i ask about upgradeed plugs and they said the facotry ones are the best they know of!