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NGK
CR9EIX - Iridium IX Spark Plug
$10.50 - $39.99  Sale
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MSRP $10.50-47.80
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Product Description
NGK CR9EIX - Iridium IX Spark Plug

Designed specifically for the performance enthusiast. Iridium IX® offers extreme ignitability, improved throttle response and superior anti fouling.

  • Fine Iridium tip ensures high durability and a consistently stable spark
  • Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines
  • Trivalent Metal Plating - superior anti-corrosion and anti-seizing properties
  • Outstanding acceleration, high fuel efficiency and durability
  • Ultimate design, technology and performance
Plug Specifications
  • Thread Diameter: 10mm
  • Reach: 19mm
  • Firing End: High performance Iridium
  • Resistor type
Customer Reviews
Average Rating -  Based on 5 Review(s)
Fit   5.0
Features   4.8

Finish   5.0
Cost Benefit   4.8

Durability   4.8
Overall   4.9
Latest Reviews
Fit   5.0
Finish   5.0
Durability   5.0
Features   5.0
Cost Benefit   5.0
Overall   5.0
keng plano,  TX GOOD PLUG I put these in my FZ6, worked great. I notice that my head light is brighter after I put in these plugs. I think maybe it required less electricity or lower voltage to make the spark compared to my older original plug. My original plug lasted about 20k miles and is still in good shape when I replace it. I hope these last at least 30k miles.
Fit   5.0
Finish   5.0
Durability   5.0
Features   5.0
Cost Benefit   5.0
Overall   5.0
RONALD CLIFTON BALTIMORE,  MD SPARK PLUGS Good price for a set of 4
Fit   5.0
Finish   5.0
Durability   4.0
Features   4.0
Cost Benefit   4.0
Overall   4.4
gixxerjunkie Nyack,  NY NGK-CR8EIX Iridium It’s a spark plug, what do you expect? Smoother running engine, better mileage, extra power... Didnt notice any difference but will keep buying them from M.S. and replacing them every year, just in case, what if...
Fit   5.0
Finish   5.0
Durability   5.0
Features   5.0
Cost Benefit   5.0
Overall   5.0
Steinar Johnsen Burbank,  CA Good Tune up upgrade I bought these to replace my plugs for the first time at 26400 mile interval for my 2004 ZX-12R. I've only put a few hundred miles on them, but the engine runs a much smoother now than it did before. Excellent product, especially at this price.
Fit   5.0
Finish   5.0
Durability   5.0
Features   5.0
Cost Benefit   5.0
Overall   5.0
Jameel Nicholson Plant City,  FL Good tune-upgrade I bought these to replace my plugs at the 7500 mile interval in my 2006 GSX-R 1000. They were better-priced than the regular plugs here on MS, and went in without a problem. I've only put a few hundred miles on them, but the engine runs a bit smoother now than it did before. Don't really notice any other difference from the stock plugs. Excellent product, especially at this price.
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