Spark plug Bosch or Denso

PartReview Score

Rank #3 in ranking

198

145

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

Rank #2 in ranking

324

137

184

3.9

Acceleration

3.7

Idle

3.8

Starting

3.8

No data

Reviews

All

Bosch

Denso

Bosch › Spark plug

showsomesideboob 4 Sep 2021, 02:16

Rating 5.0

I've run Bosch iridium's in all my vehicles (boosted and daily). No gapping needed.

Pros: no gapping needed

Part number: 9756

Denso › Spark plug

Tedstor 31 Aug 2021, 17:13

Rating 5.0

I just replaced mine, at 80k, with Denso PLatinums. The same brand as the stock plugs.

Pros: same as stock

Mileage: 80000 km

Denso › Spark plug

Joey1.4T 11 May 2021, 15:28

Acceleration:

Rating 5.0

Denso Iridium 1 step colder plugs. Running great on my 2017 Jetta 1.4T

Pros: running great

Vehicle: Volkswagen Jetta

Part number: 5308 IXU22

Denso › Spark plug

Muleshoe450 20 Jan 2021, 00:03

Starting:
Idle:
Acceleration:

Rating 5.0

Get the oem denso ones. There is nothing better than oem for that kind of thing.

Pros: nothing better than OEM

Denso › Spark plug

reallynotloudsanmich 29 Oct 2020, 18:31

Rating 4.0

This is what a 202k mile spark plug looks like on an 2013 Lexus gs350 daily driver. Pretty impressed with it overall. All 6 plugs look exactly like this.

Pros: impressed with it overall

Vehicle: Lexus

Denso › Spark plug

MrWilsonxD 23 Oct 2020, 07:15

Rating 5.0

For spark plugs, denso or bust

Pros: reliable spark plugs

Vehicle: Lexus ES

Denso › Spark plug

shinnersvr6 10 Sep 2020, 20:21

Acceleration:

Rating 5.0

I've been running Denso (5346) IKH24 Iridium gapped .024 on APR stg1 for 48k miles and most recently on stg 2 with no issues.

Pros: no issues

Mileage: 48000 km

Part number: 5346

Bosch › Spark plug

Stormgrey93 17 Jun 2010, 01:34

Acceleration:

Rating 3.5

I ran them for awhile in my Passat VR6.They did decent.Burned really well actually. I think when I was running them I only got about 23 MPG.

Pros: decent performance, burned well

Cons: average MPG

Vehicle: Volkswagen Passat

Bosch › Spark plug

AldenM 25 Oct 2013, 14:38

Acceleration:

Rating 1.0

If you use anything but OEM plugs in a stock white block, well just don't do that. Also Bosch Platinum, great for having to pull your head and find out what the center of the plug did to your engine

Cons: engine damage