I began reading and ended up buying a set of NGK BKR7E-11 (Stock# 4464). From researching, it looks that the ones I got had the v-groove center and a little less projected tip. They are also 2 steps colder. It's been about 3k miles and the car is running great. Big difference over the Denso plugs as far as smoothness. I did not notice a difference in mileage.

Pros: running great, smoother operation

Cons: no mileage difference

Vehicle: Volkswagen

Mileage: 3000 km

Part number: BKR7E-11

NGK › Spark plug

themightyquinn 4 Dec 2015, 04:27

Rating 5.0

Idle:
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I can only comment on the ZFR5E-11 ... and let me say...THEY ARE AWESOME. Now of course these are not "official" OEM spark plugs for our engine, so just remember that...but the results speak for themselves. I'll say it again for effect... THE NGK ZFR5E-11 STANDARD COPPER SPARK PLUGS RUN GREAT IN VW 2.5L INLINE-5 CYLINDER ENGINES !!!!!!! Just had to gap down to .040"/1.0mm. The butt-dyno says YES, idle is smoother, MPG's are up (couldn't get more than 28 highway before, recorded multiple highway cruises on the NGKs at 72-75mph in the 30.X range!), and, oh yeah, did I mention they cost $2.50 per plug? The wallet also says YES. So run along now to your local auto parts store, where they are literally ALWAYS in stock (part #4435) and rejoice at the thought of walking out with 5 quality NGK copper plugs for less than $13.

Pros: awesome performance, smoother idle, improved MPG, low cost, always in stock

Cons: not official OEM

Vehicle: Volkswagen

Part number: ZFR5E-11

NGK › Spark plug

Tangent_ 23 Sep 2015, 19:03

Rating 4.0

NGK BKR6EQUP. Those are the original and they tend to work well for the entire 100k change interval while many other brands/models can be problematic after a while.

Pros: work well, long interval

Cons: other brands problematic

Vehicle: BMW

Mileage: 100000 km

Part number: BKR6EQUP

NGK › Spark plug

Fulmersbelly 23 Sep 2015, 15:07

Rating 4.0

Acceleration:

I pulled my original plugs, and they were exactly the same as the replacement NGK. They're nice so far.

Pros: nice replacement

Cons: super pain to remove

Vehicle: BMW

Mileage: 130000 km

NGK › Spark plug

Bliksemsnel 15 Sep 2015, 11:39

Rating 4.5

Idle:
Acceleration:

I installed the NGK PFR7S8EG laser double platinum. They came gapped at .032. Initially I installed them at .032 gap and just yesterday I closed the gap to .028. Car runs strong and idles smooth at both gaps.

Pros: runs strong, idles smooth

Part number: PFR7S8EG

NGK › Spark plug

Meteor S4 5 Jul 2015, 23:48

Rating 5.0

I don't cheap out on the car so everything i put most by a name brand. New Parts; 37. NGK Spark Plugs

Pros: name brand

Vehicle: Audi S4

NGK › Spark plug

jaities 23 May 2015, 00:00

Rating 5.0

Idle:

Replaced old plugs, DENSO W20EXR-U, with new NGK BPR6ES. Idles a lot more smoothly now.

Pros: Idles a lot more smoothly

Vehicle: Volkswagen

Part number: BPR6ES

NGK › Spark plug

tunersharkbitten 6 May 2015, 01:59

Rating 5.0

I prefer NGK for both plugs and wires.

Pros: preferred brand

NGK › Spark plug

BsickPassat 23 May 2011, 18:57

Rating 3.5

I had NGK PFR6Q and it ran fine. But... now I use the stock NGK plugs

Pros: ran fine

Vehicle: Volkswagen Passat

Part number: PFR6Q

NGK › Spark plug

dirosama 20 Mar 2011, 06:32

Rating 0.5

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Idle:
Acceleration:

DO NOT DO NOT DO NOT get laser series platinums! They are junk! I tried them out and our motors do not like them. I had so many issues with them I threw them away

Cons: junk, many issues, motors dislike