PFR6Q was equivalent to the stock Bosch plugs. They work fine.
I used NGK BKR5E-7938 they are awesome plugs, i only paid $14 for mine but i have a friend who pays cost. they are around $80.
I used to run NGK tr55's in my mach1 but for some odd reason they had a tendency to become loose I thought it was my heads but I switched to a brisk plug over 30k ago and haven't looked back I will be buying them for all my cars.
installed new plugs and R8 coils today no misfires anymore. this car is f'ing FAST now!
just did my coil packs and plugs. Used E version Hitachi Made in Japan coils. to my surprise the NGK Laser Cut Platinum plugs PFR6Q came gapped at .028, I was expecting them to be set at .032 from the factory, so it was a simple replacement. No more misfires over 20 psi
New NGK Spark Plugs
I'd replace them immediately, you'll notice an improvement right away.
You will have improved power and fuel efficiency if you replace those plugs.
I'm at 60k figured, why not throw some new plugs in it for the hell of it. Ordered these as they're certainly not breaking the bank and again, reviews seemed promising. Now, immediately after turning the car on, (despite my disbelief when ppls said the car ran smoother) It actually did. My old plugs weren't in to bad of shape, nothing fouled up, gaps all looked the same, no excessive carbon build up and so on. When driving, engine truly feels very smooth but power doesn't seem as abrupt as it use to be. Before it would kick in and push you back, now its a slow, gradual kick. Almost feels as if I lost power. I have no way of determining how factual this is though. Fuel economy is roughly the same, if not a hair better. (based solely on my drive into work today) i received 24mpg as opposed to the 22-23 i normally get, driving no different than I normally do. Just wondering if anyone else noticed power loss or change in the feel of their car from these plugs. I'm seriously debating putting the old plugs back in, but I want to VAG COM my car first to see if I'm running any misfire codes.
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.
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