NGK Iridium Spark Plug - CR9EIX

Immediate noticeable improvement in idle smoothness and clean running.

Spark plugs which just works. And does it well. Can't really compare with old plugs as they were practically dead but now engine runs smooth as butter. Happy with purchase.

Best price, fast delivery

Usual speedy delivery and tracking with time slot but slightly disappointed considering how fragile the contents that they were just floating around inside a box. Luckily no damage and worked as expected from NGK.

Replaced the old ones as they was worn thought I'd upgrade to the iridium set seems to run a lot smoother but the old plugs looked worn out to hell easy to fit no issues what so ever.

I'm very happy with my plugs. Much better than standard ones and they were delivered on time.

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

Excellent product. Sportsbikeshop service was very good as always.

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.

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

Great spark plug. Bike feels more responsive fast delivery.

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

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

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

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