Spark plug Bosch or Denso

vs

PartReview Score

61

Rank #3 in ranking

198

145

40

79

264

3.3

Acceleration

3.0

Idle

3.2

Starting

3.0

Owners' choice:

PR Score

Ranking

Votes

Reviews

Average rating

Properties

Car

PartReview Score

78

Rank #2 in ranking

324

137

18

29

184

3.9

Acceleration

3.7

Idle

3.8

Starting

3.8

No data

Reviews

All

Bosch

Denso

Bosch › Spark plug

MC-Leather 20 May 2017, 21:53

Rating 5.0

I have a stack of 25+ index cards filled with notes about the care and service of the car. The factory service manual has notes and highlighted areas all over it.

Pros: documented care, service

Vehicle: Volkswagen Scirocco

Mileage: 155000 km

Denso › Spark plug

mroberte 6 Jan 2017, 10:39

Starting:
Idle:
Acceleration:

Rating 5.0

I have the denso ikh24 and no problems for me.

Pros: no problems

Denso › Spark plug

Gbells124 6 Jan 2017, 06:05

Starting:
Idle:
Acceleration:

Rating 5.0

ive ran the denso plugs in my stage 2 gli, and they worked great, had no issues with them.

Pros: worked great, no issues

Vehicle: Volkswagen

Bosch › Spark plug

FrankenCar 30 Nov 2016, 05:23

Rating 5.0

Replaced spark plugs with genuine VW Bosch units

Pros: genuine VW units

Vehicle: Volkswagen Jetta

Denso › Spark plug

VWRook 10 Aug 2016, 13:37

Rating 4.0

Denso IKH24 plugs gapped to 0.024". 6,900 miles. APR Stage 2 tune. Only issue was CEL error when we installed the Unitronic downpipe and flashed to the stage 2 tune. After troubleshooting and contacting APR, they had my shop re-flash to a stage 2 beta file, no more CEL error.

Pros: fixed CEL error

Cons: CEL error initially

Vehicle: Volkswagen

Mileage: 11046 km

Denso › Spark plug

Hardcore VW 9 Aug 2016, 22:51

Acceleration:

Rating 4.5

IS38 APR tune with Denso IKH24 plugs, no brainer cheap insurance.

Pros: cheap insurance, no brainer

Denso › Spark plug

vwjunky18t 10 Jun 2016, 14:00

Starting:
Idle:
Acceleration:

Rating 4.5

I did swap in Denso IKH24 at APR recommendation. Runs nice and have no issues to share

Pros: runs nice, no issues

Vehicle: Volkswagen

Bosch › Spark plug

idlirp 9 Sep 2009, 20:55

Acceleration:

Rating 3.0

i changed the original NGK spark plug with new Bosch super 4 spark plugs. a nice improvement but still far from old good performance.

Pros: nice improvement

Cons: far from old performance

Vehicle: Volkswagen Golf

Mileage: 200000 km

Bosch › Spark plug

kamzcab86 2 Oct 2012, 06:09

Starting:

Rating 1.0

Bosch is making crappy plugs these days.

Cons: crappy plugs

Vehicle: Volkswagen

Bosch › Spark plug

Anony00GT 20 Aug 2012, 15:50

Acceleration:

Rating 1.0

Put the correct spark plugs in there (NGK BKUR6ET-10 for AEG), throw those Bosch +4 turds in the bin where they belong.

Pros: correct spark plugs

Cons: Bosch +4 turds

Vehicle: Volkswagen Golf

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