Spark plug NGK or OEM Subaru

vs

PartReview Score

81

Rank #1 in ranking

1506

597

71

95

763

4.0

Acceleration

3.7

Idle

3.5

Starting

4.1

Owners' choice:

PR Score

Ranking

Votes

Reviews

Average rating

Properties

Car

PartReview Score

69

Rank #13 in ranking

18

10

1

4

15

3.7

Acceleration

4.0

Idle

5.0

Starting

4.0

No data

Reviews

All

NGK

OEM Subaru

NGK › Spark plug

Brock-Tkd 11 Dec 2025, 20:04

Idle:

Rating 5.0

I run ngk tr6 plugs straight out of the box in my cammed ls1 for $6ish a plug (discounted) i change them more frequently for piece of mind. The car runs mint

Pros: car runs mint

NGK › Spark plug

SpiritualZombie2063 11 Dec 2025, 15:18

Rating 5.0

I use these in my IE stage 1 MK7. I replace them every 20k, zero issues so far. They could probably go another 10k miles, too, I just replace them early to avoid the ground strap issue that seems to be prevalent.

Pros: zero issues so far

Cons: ground strap issue

Vehicle: Volkswagen Golf

Mileage: 20000 km

NGK › Spark plug

Clear-Relative-2371 10 Dec 2025, 20:50

Rating 5.0

When I order NGK spark plugs, I get NGK spark plugs, not some copy.

Pros: get NGK spark plugs

Vehicle: Honda

NGK › Spark plug

Afraid_Ad_8571 10 Dec 2025, 01:58

Rating 4.0

The AC Delco Iridium are fine failing that anything NGK the NGK ruthenium work well. Or the NGK Iridium

Pros: work well

NGK › Spark plug

InitialOk6864 9 Dec 2025, 15:02

Rating 5.0

I replaced all spark plugs with Genuine Audi NGK plugs and replaced all Ignition Coils as well.

Vehicle: Audi A6

NGK › Spark plug

Ok-Session657 8 Dec 2025, 13:24

Idle:

Rating 5.0

After changing: Idles better and more consistent at 700~800 rpm range. Car drives smoother? Changing spark plugs made it visibly better.

Pros: idles better, drives smoother

Mileage: 215000 km

NGK › Spark plug

koonbob 7 Dec 2025, 18:33

Rating 5.0

NGKs are my go to’s

Pros: go to

NGK › Spark plug

Opening-Swan917 22 Nov 2025, 06:38

Acceleration:

Rating 3.0

Also check the spark plugs, sometimes people are cheap and buy autolites instead of NGK. Cheap plugs from previous owner give me a headache.

Cons: cheap plugs headache

NGK › Spark plug

PaultheBP1100 9 Dec 2025, 20:00

Idle:
Acceleration:

Rating 1.0

I bought a NGK №6 4-pack for 20$ at local parts shop, After the replacement, engine problems began: loss of power, misfires, and severe vibration.

Cons: loss of power, misfires

NGK › Spark plug

SpaceCricket 8 Dec 2025, 20:56

Acceleration:

Rating 2.0

I’m lucky if I get a full 5k miles out of a set of ER10S before one of them shits out and I get a misfire.

Pros: easy to change

Cons: misfire, short lifespan

Mileage: 8046 km

Part number: ER10S

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