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NGK Iridium Spark Plug - CR9EIX

NGK Iridium Spark Plug - CR9EIX

Customer Product Reviews

4.5 Stars from 19 reviews

Our price $12.72 $15.90
Showing 1 - 19 of 19
NGK Iridium Spark Plug - CR9EIX
August 4, 2019

Zx6r J1

Done the job although noticed they are cheaper at Halfords of all places !!!

NGK Iridium Spark Plug - CR9EIX
June 25, 2019


Excellent product. Sportsbikeshop service was very good as always.

NGK Iridium Spark Plug - CR9EIX
April 9, 2019

Vast improvement

The standard ngk plugs had bin in for twenty years 1999 . The bike ran ok so why change them. The difference though is vast the bike will now rev happily and tick over better . The miss fire it had started having at low revs gone away.

NGK Iridium Spark Plug - CR9EIX
July 7, 2018

Quality product

Always buy NGK spark plugs and never was disappointed. Good quality, well protected tips and perfect gap. Service also top notch.

NGK Iridium Spark Plug - CR9EIX
April 26, 2018

More responsive

Great spark plug. Bike feels more responsive fast delivery.

NGK Iridium Spark Plug - CR9EIX
December 2, 2017

Good quality plugs at a good price

Good quality plugs at a good price with excellent service yet again from Sportsbikeshop.

NGK Iridium Spark Plug - CR9EIX
August 12, 2017


Easy to install yourself and work as they should, would purchase again.

NGK Iridium Spark Plug - CR9EIX
May 22, 2017

Sweet as a nut

Plugs were just what I ordered! Quick delivery. No probs.

NGK Iridium Spark Plug - CR9EIX
May 5, 2017

Top class

Only every used Iridium plugs in my GSXR. Won't change to anything else.

NGK Iridium Spark Plug - CR9EIX
April 18, 2017

No complaints

Works perfectly, no complaints, will always purchase NGK over any other brand.

NGK Iridium Spark Plug - CR9EIX
November 30, 2016

Great product, very happy

Super fast delivery yet again from Sportsbikeshop. My bike was definitely overdue some new plugs and I thought I would give the iridium ones a try. The bike definitely starts easier from cold and the idle is much smoother. Hard to say if the iridium makes a difference though as the old plugs were that bad. After a price match they were an even better price too!

NGK Iridium Spark Plug - CR9EIX
September 17, 2016

Spot on

Looking for spark plugs and doing my research on the best spark plugs for my bike and of course Sports Bike Shop had it. Plenty in stock with a good delivery time, arrived with me bang on time. Well packaged and price matched! Very happy with purchase and service. I have done a lot of custom with Sports Bike Shop and will continue to do so!

NGK Iridium Spark Plug - CR9EIX
May 11, 2016

Top quality at a great price

Bike starts more easily and seems to be a lot more responsive with better overall smoother running....

NGK Iridium Spark Plug - CR9EIX
September 17, 2015

A good spark makes the difference

Definitely improved starting. The engine sounds sweeter, and seems to have sharpened up the power to some extent. The main gain has been in fuel efficiency which has definitely improved by nearly 10 mpg..!However, like someone else in the reviews, I have also changed the air filter and I'm unsure about what has made the biggest difference. If your on a tight budget, then standard plugs will do, but if your aiming for excellence then the Iridium are necessary.

NGK Iridium Spark Plug - CR9EIX
March 16, 2015

Bike starts well and goes well as per usual.

Fairly simple to fit, albeit some battered fingers/knuckles. Bike has had NGK iridium plugs fitted since new and always started well, so not sure how they would compare to standard plugs and that's if I was able to detect a difference.

NGK Iridium Spark Plug - CR9EIX
March 22, 2013

Wot a bright spark!!

I love these iridium sparkplugs! Better start ups, & more responsive on the throttle! But dont take my word 4it! Get some & you'll know what im talking about!should of bought this product ages ago! "NICE!!":)

NGK Iridium Spark Plug - CR9EIX
March 19, 2013

Working well so far

To be honest, I can't really tell the difference between standard and iridium yet. So far, they've had no problems but lose a star because of the price.

NGK Iridium Spark Plug - CR9EIX
September 13, 2011

Better than regular plugs

Not sure if the bike runs any better but it certainly starts up better than on regular plugs so worth the extra I reckon.

NGK Iridium Spark Plug - CR9EIX
July 11, 2011

Time will tell

I've rated these good on the basis that its very difficult to tell if they're actually any better than standard plugs. I did valve gaps, carb balancing, new air filter and oil change all at the same time. The bikes running great as a result but its hard to tell which of those has made it run smoother!

PLEASE NOTE: The views and opinions expressed in the above reviews are solely those of the author and are not necessarily representative of the views of SPORTSBIKESHOP LTD.