Spark plug NGK or Denso

PartReview Score

Rank #1 in ranking

1506

597

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

Rank #2 in ranking

324

137

184

3.9

Acceleration

3.7

Idle

3.8

Starting

3.8

No data

Reviews

All

NGK

Denso

NGK › Spark plug

otavio1cabral 16 Jul 2025, 17:56

Acceleration:

Rating 4.0

Yeah, I use NGK laser iridium. I got a friend that has a m6, m5 v10, and uses those, it's good

Pros: it's good

Vehicle: BMW

NGK › Spark plug

Hotpnts- 15 Jul 2025, 15:39

Acceleration:

Rating 5.0

Ngk's. First thing i did was get the original plugs out of my beamers and put in the ngk ones. Widely considered one of the best plugs for your engine.

Pros: best plugs for engine

NGK › Spark plug

Gtbsgtmajor 11 Jul 2025, 04:48

Starting:
Idle:
Acceleration:

Rating 4.0

Your misfire could be bad plugs, from looking at these pictures your plug gaps look massive. NGKs are good and motorcraft is also good and I wanna say cheaper from RockAuto.

Pros: good plugs, cheaper

Cons: plug gaps massive

Vehicle: Ford Mustang

NGK › Spark plug

rallytsd 1 Jul 2025, 15:58

Starting:

Rating 4.0

NGK BKUR6ET-10, stock number 2397. With every other car I've owned, the first symptom of failing plugs is missing at higher rpms. In the AEG engine, the first symptom is that it gets hard to start. Do you find that too?

Pros: failing plugs hard to start

Cons: missing at higher rpms

Vehicle: Volkswagen Jetta

Part number: 2397

NGK › Spark plug

B00B00_ 30 Jun 2025, 04:15

Rating 5.0

I literally JUST did this today to mine. used NGK 3967's (about $4.27 a piece)... And also replaced the spark plug wire for about $30 using NGK 4412.

Pros: replaced spark plug

Part number: 3967

NGK › Spark plug

SilentShadow31 29 Jun 2025, 19:01

Rating 5.0

i run NGK BP6EFS, no issues with them on 2 engines so far

Pros: no issues so far

Part number: BP6EFS

NGK › Spark plug

golfjulietbravoo 29 Jun 2025, 17:27

Acceleration:

Rating 4.0

I’ve run NGK platinum and Denso and they both work well.

Pros: work well

NGK › Spark plug

ramank93 6 Aug 2025, 20:59

Rating 3.0

Out with the old and in with the ngk 94833

Don't use AutoZone crap

Cons: AutoZone crap

Vehicle: Audi A3

Part number: 94833

NGK › Spark plug

311387 28 May 2024, 23:53

Acceleration:

Rating 1.0

Be careful where you buy your plugs. There are counterfeit NGK plugs out there. I found out the hard way. I purchased off of Amazon. Mine melted before I could even get a mile in to my session.

Pros: working plugs, let em work

Cons: plugs melted quickly

Vehicle: Volkswagen Golf