vs
Spark plug Denso or OEM Audi
Ignition coil most likely. I have done many dozens of them. Takes about 2 minutes to replace.
Pros: easy to replace
I recently got Denso (OEM) from my local o’reillys cheaper than the dealer (~$80).
Pros: cheaper than dealer
Bro ABSOLUTELY do the spark plugs yourself. I bought oem Denso spark plugs from Napa Auto for about $180. Then all you need is a spark plug socket w/ swivel head, 10mm socket, 12mm, a couple extensions, needle nose pliers, dielectric grease, and a pick to make life easier.
Pros: save money, easy job
Cons: time consuming for beginner
Denso iridium spark plugs
Pros: improved engine performance
Vehicle:
Toyota
New Denso Platinum spark plugs. Car drives great, no codes, no sputtering or stalling or hesitation.
Pros: car drives great, no sputtering
Vehicle:
Toyota MR2
Fitting a decent set (Denso or NGK) of iridium plugs is also worthwhile.
Pros: worthwhile
Vehicle:
Subaru Legacy
Denso 3457 (FXE24HR11)
Why? It's the plug recommended in the owner's manual and I have never seen anyone have issues with this plug.
Why are they noticeably better than other equivalent plugs from reputable brands, I honestly don't know as it seems that the differences should be negligible. Plugs are one of the areas where the car is very fussy.
Pros: no issues, recommended by manual
Cons: negligible difference from others
Vehicle:
Infiniti
Part number: 3457 (FXE24HR11)
spark plugs and coils (first ride was smooth I though yeah but then manifested again) main motor mount (better revision, nothing changed, the vibration goes on)
Pros: first ride was smooth
Cons: vibration goes on
Vehicle:
Audi Q3
Mileage: 64000 km
I’ve had several Denso plugs do this on a couple Camrys I service, and our own. All 2.4 cars. Caused tow ins for both husband and wife’s cars. I’ve fired denso as a spark plug provider, too many failures.
Pros: null
Cons: too many failures
Vehicle:
Toyota Camry
I wish my Toyota 4Runner spark plug service was that cheap in the Toyota dealer. I was quoted $800 parts + labor for OEM Denso.
Pros: OEM Denso parts
Cons: expensive parts and labor
Vehicle:
Toyota 4runner
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Other comparisons
Which spark plug to choose — Denso or OEM Audi?
If choosing spark plug across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare spark plug across these categories:
- PR Score.
- Overall ranking.
- Vote balance.
- Average rating.
- Number of reviews.
- Feature ratings.
- Car owners’ choice.
Which spark plug are better — OEM Audi or Denso?
In March 2026 on PartReview, spark plug OEM Audi were overall better than Denso.
- Denso received a PR Score of 78 out of 100, and OEM Audi scored 86 points.
- Denso ranked 2 in the overall ranking, and OEM Audi ranked 11.
- The average rating is higher for OEM Audi (4.4) than for Denso (3.9).
-
Spark plug OEM Audi have better feature ratings than Denso:
- Starting - owners believe, that this property for OEM Audi is better than Denso.
- Idle - drivers claim, that this property for Denso is outperforms OEM Audi.
- Acceleration - reviews suggest, that this property for OEM Audi is preferred to Denso.
Which spark plug are more popular — Denso or OEM Audi?
In March 2026 on PartReview, spark plug Denso were overall more popular than OEM Audi.
By vote balance, spark plug Denso surpassed OEM Audi:
- For Denso, the ratio of positive (447) to negative (123) votes is 324 votes.
- For OEM Audi, the ratio of positive (32) to negative (5) votes is 27 votes.
By number of reviews, spark plug Denso surpassed OEM Audi:
- For spark plug Denso there are 184 reviews: 137 positive, 18 neutral, 29 negative.
- For spark plug OEM Audi there are 12 reviews: 10 positive, 1 neutral, 1 negative.
Which spark plug do car owners prefer — Denso or OEM Audi?
In March 2026, according to PartReview, spark plug OEM Audi led more car-specific ratings than Denso:
OEM Audi are chosen by owners of cars such as: Audi A3, Audi A6, and others.
Spark plug Denso have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.
Other comparisons of spark plug
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of spark plug Denso with: NGK, Bosch, Autolite, Champion, AC DELCO, BRISK, OEM Volkswagen, OEM Toyota, Motorcraft, OEM FORD.
Also available: comparisons of spark plug OEM Audi with: NGK, Bosch, Autolite, Champion, AC DELCO, BRISK, OEM Volkswagen, OEM Toyota, Motorcraft, OEM FORD.
You can also see who is better among other spark plug manufacturers: Bosch or NGK, NGK or Denso, NGK or Autolite, NGK or Champion, NGK or AC DELCO.