Product Description
This is the OEM NGK One Step Colder Spark Plug found in the VQ35DE Engine.
- PLFR5A-11 - Factory Heat Range (5) is best for vehicles without any modifications
- PLFR6A-11 - One Step Colder (6) is best to be used when any engine modifications have been done (Including air intake, exhaust, etc.)
Fits:
- 2003-2006 Nissan 350Z
- 2003-2007 Infiniti G35 Coupe
- 2003-2006 Infiniti G35 Sedan
- 2003-2008 Infiniti FX35
*** This item does not qualify for any additional discounts or promotions *** |
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Z1 350Z / G35 VQ35DE High-Energy Ignition Coil Pack - Set of 6
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VQ35DE Valve Cover Gasket
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OEM VQ35DE Upper Plenum Gasket
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Z1 350Z / G35 VQ35DE Plenum Spacer
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Z1 Motorsports 350Z / G35 VQ35DE 75mm Throttle Body Kit
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Would these spark plugs come pre gapped?
Yes they will come pre gapped within OEM specs.
What's the difference between the PLFR5A-11 and PLFR6A-11 are they gap differently ?
The gap is the same the difference is in the porcelain, and thus temp rating of the plug. We make these choices based on the power adders of a car. If you have questions regarding what is the right selection plug just give us a call.
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Jacob
September 13, 2024
perfect per usual can never go wrong with Z1
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Trevor
June 7, 2024
If you need the best Z1 has the best
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Max
February 1, 2024
Great fit these came pregapped perfectly and have run amazing in my car for 6 months now
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Andrew
February 1, 2024
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Kino
December 28, 2023
Easy install, works great and no issues. Would buy again.
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Nick
November 30, 2023
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Herminia
October 2, 2023
Great plugs, go well with my mods, 75mm tb, plenum spacer, cold air intake, car definitely runs way smoother.
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Nathan
September 21, 2023
Bought these with addition of the high ignition spark plugs. Had no issues!
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Mark
September 3, 2023
Super clean idle. I have the kinetix high flow cats and dc intake on to go with it to bring out a nice hum in the exhaust.
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Owen
June 19, 2023
Good plugs.yfjdkgig, I gggufyg to figure. Ofuvgkg.
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David
April 23, 2023
Along with new high out put ignition coil and these spark plugs. You can’t go wrong with improvements to your Nissan ,
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Bryan
April 22, 2023
Just basic mods done. Intake, exhaust & plenum spacer. Had recently replaced the original plugs to the standard NGKs but when ordering the Z1 5/16 plenum spacer went ahead and ordered the one step colder plugs. Dayuum my 2003 DE with 38k original miles just purrrrs now! Love it, Thx Z1!
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Andon
March 7, 2023
I would definitely recommend these, I have a few simple bolt ons and once I threw these in, my car instantly ran better.
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Jorge
February 28, 2023
I did a few mods to the engine so I wanted the best,
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Roman
February 26, 2023
Works as expected.
Perfect fit.
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Mark
February 1, 2023
Paired with the high output coil packs you can be sure you have spark, good maintenance part
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Nicholas
October 12, 2022
Worked as intended for my tune up
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German
June 21, 2022
easy install have no complains about the part.
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Jeremy
June 12, 2022
10/10 definitely recommend for aftermarket spark plugs
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Frank
May 11, 2022
Used with plenum spacer. No issues.
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Dirk
May 9, 2022
Great for my tune! My tuner loves them too!
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Cybil
November 26, 2021
I was using the cheap autozone plugs before and after installing these my car was idling a lot better, recommend these 100%
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Jonathan
November 19, 2021
with 88,000 Miles I'm pretty sure in my Z were factory original. they were very dirty and appeared to I have a rich mixture in the engine so I'm pretty sure the few bolt ons I've done without a tuner going to improve combustion rather than go lean. these look exactly like the originals and they fit perfectly. and the gaps look good.
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Mario
November 14, 2021
They work great no complaints
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Hiromi
June 29, 2021
Was recommended to use these plugs. So far running great! Also FYI these come pre-gapped @ 0.044in.
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Quanche
June 10, 2021
These plugs helped my car run better and will help with my future build of the car since theyre one step colder plugs.
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Todd
May 10, 2021
Very pleased, can tell the car runs better and the pre gap was right on all 6 of mine.
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Philip
April 26, 2021
had them for a year now and they work great. even better with FI.
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Danny
April 23, 2021
Awesome...works as great as I expected it no misfire and no code and this is keeping the car run strong and healthy and smooth
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Khalil
February 10, 2021
I purchased a set of these NGK plugs for my DE 350Z that has a few modifications done like test pipes, headers, plenum spacer, intake and 3 inch exhaust. Along side a new tune, we were able to better the ignition timing and the car feels a lot better with this heat range. It does take a bit to start up on a cold start but after the car is up to temp it works just fine.
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Anthony
February 9, 2021
Awesome plugs ,pre gapped work perfectly with my nitrous kit
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