The HKS M-Series Super Fire Racing Spark Plug has been developed to provide your vehicle with smooth acceleration, and improved performance throughout the entire RPM Range.
These spark plugs are a #9 heat range, and are an ideal spark plug for those with mild to extensive bolt-ons. With iridium technology, the HKS M-Series Super Fire Racing Spark Plugs will provide enough spark energy and performance for spirited driving, or the occasional track weekend. These are also perfect for those who daily drive their vehicles, and want a solid spark plug that will get the job done.
If it’s time to maintain your vehicle with a refreshed tune, you should include the HKS M-Series Super Fire Racing Spark Plug to make sure your car is running at optimal levels.
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