Good-Win Racing Mazda Performance Parts

HKS Iridium M-Series Spark Plug


Miata MX5 2006-2015 · Engine

Part Number: 61-0980

Application: 2006

Price: $29.95


HKS Iridium M-Series Spark Plug
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Heat Range: 7

HKS M-Series spark plugs are high performance Iridium plugs designed to provide improved ignition performance, durability and anti-carbon build-up.

0.6mm Iridium Alloy Center Electrode
Outer Electrode with Platinum Chip
Short Type Outer Electrode (Anti-Vibration)
Thermal Edge
Spark Support Gap

*M Series is recommended for reliable ignition, durability and anti-carbon buildup under high load.

The Iridium alloy is used because of its durability and reliability. On an average plug, a narrow core typically shortens life span of plug but with the intense durability of iridium there is no sacrifice in any longevity. With a high melting point of 2454 degrees C, opposed to the 1769 degrees C of white gold, the electrode can tolerate the high levels of compression and minor knocking without any deterioration. A nickel coating on the housing also prevents the spark plug from premature deterioration. The Iridium plugs are available for multiple applications and offered in "colder" heat ranges of 7 and up and specifically for rotary, heat ranges of 9 and up are offered. Price is PER PLUG!

*** Product images may differ from actual product appearance ***


Hello Brian, the swaybar and endlinks came in today. I am very pleased with the packaging and it arrived on time. Also thank you for excellent customer service and correcting my order no-hassle. I will definitely be ordering from Good-Win Racing again.

-- - Christopher

Thanks for making this work and providing great customer service! I had a full weekend with the install, but man was it worth it. The flywheel was such a good choice. I can't believe how much easier rev-matching down shifts are. The ACT is surprisingly easy to live with, even with the engagement point very low. I'll tackle that when it stops raining. Thanks again for making this happen this weekend.

-- Brian H