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HKS Super Fire Racing Spark Plugs - Toyota GR Supra B58 (Set of 6)
  • HKS Super Fire Racing Spark Plugs - Toyota GR Supra B58 (Set of 6)
HKS Super Fire Racing Spark Plugs - Toyota GR Supra B58 (Set of 6)

HKS Super Fire Racing Spark Plugs - Toyota GR Supra B58 (Set of 6)

£248.40
Heat Range

Proven Performance

HKS parts are engineered to deliver tangible performance gains, whether it's increased horsepower, improved handling, or better engine response.

Made in Japan Quality

All HKS products are manufactured with Japanese standards giving fantastic performance and quality assurance
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Delivery, Returns & Stock Information

- With popular products we will always aim to hold stock to ensure rapid delivery times across the UK.

- With less commonly ordered products we rely on drop shipping from our suppliers, this can occasionally result in delays in delivery times.

- Where a product is required urgently please contact us first before placing your order so we can check stock and delivery times to ensure no disappointment.

- Once an order is placed we aim to be in touch within 24 hours with either your delivery details or estimated time of delivery for your products.

- Need to return an item? No problem, get in touch and we can explain the next steps.

Please contact us ahead of time to confirm HKS lead times on specific items.

Items held in stock by HKS UK are delivered in 2-3 working days. Items that require shipping from HKS Japan can be up to 16 weeks.

Price Match

Seen it cheaper elsewhere? Get in touch with where and how much and we'll not only do our best to match it, where possible we aim to beat it!
Product Queries

Got a question about this product? Get in touch via our online chat or email and our team of experts will get back to you as soon as we can with an answer.
Does this fit my car?

This product is compatible with the following models and year ranges:

Toyota GR Supra 3.0 (2019-)

The HKS MR lineup is equivalent to NGK No. 8 and No. 9 heat values. This new series of plugs inherits the best from the existing M series and features a Ruthenium Alloy Electrode to provide a reliable spark for all vehicles, including vehicles with increased boost or lightly tuned vehicles.

On top of an extended lifetime, use of Ruthenium alloy allows a better fuel burn, resulting in quicker throttle response, smoother idle and better cold starts.

Ruthenium Alloy Center Electrode reduces voltage requirement as well as ignition performance improvement and durability. Brass Terminal offers firm fitting to plug wire or coil-pack. Plating coating for better insulation and excellent corrosion resistance.
Outer electrode with platinum squre chip improves ignition, maximum durability, combustion speed and quality. The outer electrode has been shortened and engineered with the ideal shape to decrease weight for resistance against vibration.

  • Durability is ensured by alloying the central electrode with ruthenium.
  • The center electrode diameter set at 0.6mm reduces the required voltage and improves ignition performance. (Stock: 0.8mm)
  • Ground electrode with platinum alloy tip improves durability and ignitability. Shortened ground electrode length contributes to electrode strength and durability.
  • The ground electrode contains a copper core to suppress temperature rise of the electrode and improve durability.

Please Note: Heat range 9 spark plugs are only recommended for tuned cars.

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