IS38 APR tune with Denso IKH24 plugs, no brainer cheap insurance.
Pros: cheap insurance, no brainer
Owner reviews for spark plug
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i run BKR7E at stock gap on stage 2 30psi. no problems at all even in 100 degree heat.
Pros: no problems, reliable in heat
Vehicle:
Volkswagen Golf
Part number: BKR7E
I would strongly recommend using NGK PZFR5J-11 spark plugs. These NGK Laser Platinum plugs are the best option for your 2.5l. Not only are they pre-gapped and ready for installation, but they'll perform great and provide dependable service for several years.
Pros: best option, pre-gapped, great performance, dependable service
Vehicle:
Volkswagen Golf
Part number: PZFR5J-11
I've only ever used NGK plugs in my girlfriends old 2.5 and my current 2.5 (both cars have a total of 150k miles between them) and have never had a problem. They have also never needed to be gapped. Just take em out of the box and install them.
Pros: never had problems, easy to install
Mileage: 150000 km
Only use the factory AC-Delco 41-987 plugs.
Pros: factory quality
Part number: 41-987
I did swap in Denso IKH24 at APR recommendation. Runs nice and have no issues to share
Pros: runs nice, no issues
Vehicle:
Volkswagen
Just thought I'd come back and post what I found to possibly help others. New coil packs solved the issue. All of them were in pretty rough shape when I took them out. Picked up new packs from the stealer for $60 a piece. Also bought the NGK BKR7E's, Gapped to .28 best I could. Fuel economy has returned thankfully, and low end performance is great. The turbo seems to be building boost a little more easier, and it takes less throttle to get the car accelerating. Can floor it from 2500 rpm to the limiter at 6900 without any hesitation, hiccups or blips in power.
Pros: Fuel economy returned, low end performance great
Vehicle:
Volkswagen
Part number: BKR7E
new NGK R's (copper) runs better but not 100%
Pros: runs better
Cons: not 100%
Autolite made the only plug I've ever had that was dead when brand new.
Cons: dead when brand new
The original dealership where I bought the van installed Denso spark plugs part # SXU22HCR11S which were supposed to have a gap of 0.044 but they all had either 0.039 or 0.040. Apparently no one checked the gap before putting them in.
Cons: incorrect gap, poor quality control
Part number: SXU22HCR11S
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