Denso Iridium Race Spark Plugs

Denso Iridium Race Spark Plugs

Denso Iridium Race Spark Plugs

32 reviews
Regular price $34.99
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This is our secret weapon spark plug for high horsepower direct injected LNF, LHU, and LTG cars (500+whp) where we start to have issues with the electrode burning off.  This has a different style tip which doesn't burn off and cause valve train/piston/block damage like the other plugs can.

Iridium Power® plugs are for drivers that care about performance as well as drivers that care about mileage. These plugs best demonstrate their performance improvement during acceleration. The world's smallest center electrode (0.4mm) and specially shaped ground electrode delivers maximum spark energy while withstanding temperatures greater than 4000º F. These features combine to achieve higher ignitability and require lower spark voltage than ever before. As a result, acceleration improves in comparison with normal plugs.

Features:

  • Tapered cut, U-Groove ground electrode
  • 0.4mm iridium center electrode
  • 360-degree laser welding assembly process
Benefits:
  • Required ignition voltage reduced
  • Unsurpassed center electrode durability

We generally recommend a .028" gap depending on overall power level.  However due to the fragile tip, a proper gapping tool must be used.

These work in LNF, LHU, & LTG

Comes in a set of 4.

Customer Reviews
4.9 Based on 32 Reviews
5 ★
97% 
31
4 ★
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DW
08/11/2022
Dwayne W.
United States

great plugs so far

great. my only issue is i have left messages and never received any callbacks.

JC
07/06/2022
Jesse C.
United States United States

Gapped correctly!!!

Easy install and works great!

MA
05/25/2022
Mathew A.
Canada Canada

Perfect addition to my setup

Nice plugs, pre-gapped to ZZP spec for ATS 2.0L. Couldn't have asked for better

JL
05/11/2022
Jorge L.
United States United States

Great purchase from zzp

Good product and will continue to buy zzp as I made a few purchases already .

JH
04/08/2022
Jackie H.
United States United States

Thank you.

I am very happy with the purchase I made. And the tune is great.

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