i have run the ngk v-power plugs the past couple of years with great results. part number r5671a-9
Pros: great results
Part number: R5671A-9
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If you like Bosch plugs, use a 7 heat range. The stock 8 is fine for quick in-town trips at stock <10:1 compression. Older 8v's used 7 with the same combustion chamber and lower compression, with 0.032" gap stock. At 11:1 with a big cam and the same ignition mods, an NGK tech told me to run colder plugs (Bosch 6 equivalent, NGK 7) at 0.035" gap. He sent me a box of NGK race plugs, I gapped them, and my car ran sooooo much nicer. I was using Bosch W7DC and W7DTC (even worse) before.
Pros: car ran nicer
Cons: even worse performance
so right now I'm using ngk bkr7e for a turbo application. i am pretty happy with them.
Pros: happy with performance
Vehicle:
Volkswagen
I would also recommend NGK plugs, they are made in Japan and well worth the money.
Pros: well worth money, made in Japan
Vehicle:
Volkswagen Golf
I made the switch to NGK over a year ago, and haven't looked back. NGK are all made in Japan, and they're more consistent. Multi-electrode plugs hold too much heat around the center electrode, which increases the probability of detonation. Gapping the plugs is also much tougher to do. The grounds can also hold more garbage and shroud the spark.
Pros: more consistent, reliable
Cons: multi-electrode issues, difficult gapping
Vehicle:
Volkswagen
I've been researching spark plugs and i believe the oem's in Phaeton are Platinum. I am certainly going to verify that and will change mine to Iridium's. For the purpose of better power, performance, and fuel mileage.
Pros: better power, better mileage
Vehicle:
Volkswagen Phaeton
That being said I ran Revo stage 1 and now APR stage 1 and in both cases I've had no issues running the NGK BKR7EIX plugs. I inspect them at a reasonable interval to make sure combustion looks good with them and it appears that they are doing just fine.
Pros: no issues, good combustion
Mileage: 13000 km
Part number: BKR7EIX
Changed spark plugs, wires, cap/rotor with Bosch bits (w7dtc not those crappy +4s)
Cons: crappy +4s
Part number: W7DTC
Hey I am just wondering what are the best plugs to get for my jetta? I bought some NGK's from auto zone and I was getting misfires in EVERY cylinder.
Cons: misfires in every cylinder
Vehicle:
Volkswagen Jetta
I went out bought the NGK plugs and installed them moments ago. Reset the codes and started the engine. Within 1 minute I had the CEL and the P0351 - P0354 codes.
Pros: installed new plugs
Cons: CEL, error codes
Vehicle:
Volkswagen Jetta
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