i had bosch and just switched to NGK BKR7EIX. theres a difference!!!
I am planning on ordering a set of NGK BKR7EIX. They are one heat range colder, and I keep hearing good reviews. I also hear the downside is you have to replace them more often. I think if you search for them, you'll find better reviews from ppl who use them and diy if needed. I found them here http://www.sparkplugs.com/resu...&y=17 , might be cheaper elsewhere, I haven't started shopping yet, im just coming up on 10,000 miles.
My mkV GTI came with Bosch plugs stock. I am now using a set of NGK BKR7EIX plugs (which by the way come pre-gapped...)
Turns out the AutoLite plugs that a local parts store sold me are crap for this engine (actually caused misfires) so I went and got Denso double platinum plugs the next day and put those in.
I run BKR8EIX gapped at 0.028 with great success as my regular plug.
bkr7e for pump gas.
Dave is right, I checked mine out of the box with wire guage. .030" the same as stock ones I removed. From the box to the car no adjustment, no misfires, runs great.
Change the spark plugs every 20k and use OEM NGK plugs. They work the best for our cars. I\u2019ve run Bosch Platinum +4 with no trouble but the NGK seem to work the best for me.
Go with a normal plug (I run NGK) and stock wires. Oh, a lot of the hype about the Plat-4 is just that...hype. The spark is going to follow the path of least resistance. Meaning, its only going to go to one electrode at a time. Well, maybe if your engine fouls plugs, but otherwise, just get a set of OE Replacement NGK's.
BP7ES gapped at .025 aren't doing it.
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