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NGK Iridium IX Spark Plugs

SKU: BKR8EIX-4

$29.99 Sale price

Model
Regular price $29.99

Iridium IX Spark plugs are the most technologically advanced high performance plugs available. Featuring a 0.6 mm iridium center electrode tip, they offer superior ignitability without sacrificing duality. The tapered ground electrode increases flame kernel expansion, while the superior heat range design is ideally suited to the demands of the high performance environments. Specially designed to meet the needs of serious enthusiasts, Iridium IX Spark Plugs offer outstanding acceleration, high fuel efficiency, and long life. When you demand the most from your engine, rely on the proven performance of NGK Iridium IX Spark Plugs. Iridium IX Spark Plugs are the most technologically advanced high performance plugs available.

Iridium plugs burn clean and a cooler range of plug can be used without the normally associated risk of plug fouling. This is why we recommend them over the Autolites for the boosted Ecotec. 

  • Choose stock heat range for cars with stock pulleys down to 3.2".
  • Choose one range colder for 3.0" pulley use. 
  • Choose two ranges colder for 2.8" and below pulley sizes. 
  • .033 gap. 

Iridium plugs should not be regapped. The tip is too delicate for the gap to be changed. They come set up for high boost applications. 

Sold in sets of 4. 

You are viewing a product listed on the following platform:

Ecotec
Sonic-Cruze

Iridium IX Spark plugs are the most technologically advanced high performance plugs available. Featuring a 0.6 mm iridium center electrode tip, they offer superior ignitability without sacrificing duality. The tapered ground electrode increases flame kernel expansion, while the superior heat range design is ideally suited to the demands of the high performance environments. Specially designed to meet the needs of serious enthusiasts, Iridium IX Spark Plugs offer outstanding acceleration, high fuel efficiency, and long life. When you demand the most from your engine, rely on the proven performance of NGK Iridium IX Spark Plugs. Iridium IX Spark Plugs are the most technologically advanced high performance plugs available.

Iridium plugs burn clean and a cooler range of plug can be used without the normally associated risk of plug fouling. This is why we recommend them over the Autolites for the boosted Ecotec. 

  • Choose stock heat range for cars with stock pulleys down to 3.2".
  • Choose one range colder for 3.0" pulley use. 
  • Choose two ranges colder for 2.8" and below pulley sizes. 
  • .033 gap. 

Iridium plugs should not be regapped. The tip is too delicate for the gap to be changed. They come set up for high boost applications. 

Sold in sets of 4. 

Customer Reviews

4.9 Based on 25 Reviews
5 ★
96% 
24
4 ★
0% 
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3 ★
4% 
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CD
06/01/2019
Cole DeBolt

Do your own research after ZZP mods

I had my engine totally rebuilt by ZZP and it was running great. After running it about 5,000 miles with no top speed runs and rarely sticking it to the kitchen, I had a cylinder fail out of nowhere. Months before this, I had it into zzp on why it was bypassing so much oil, they told me it was normal. I put a catch can on it. Reading my own codes I found later the car was compensating a lot more voltage because the fuel was not combusting fast enough. Zzp never advised me to use anything other than stock plugs even when asked when the build was going on. You will have problems with stock iridium plugs so get ones that will not burn hot because they WILL melt and can blow a cylinder

AH
04/12/2019
Angel H.

plugs

car runs way better plugs and msd coil pack

EC
01/02/2019
Ed C.

Would recommend to LSJ guys

Would recommend to LSJ guys :star2::star2::star2::star2::star2:

AD
12/11/2018
Austin D.

Great spark plugs!

Helps with spark plug blowout common in AcDelco plugs

GC
11/14/2018
George C.

Worth it

Good plugs

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