HKS M-Series Super Fire Racing Spark Plug
 

HKS M-Series Super Fire Racing Spark Plug - Nissan Skyline GT-R R35 / FR-S BRZ ( Heat Range 9 ) M45HL

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What's the point of this mod? Serious inquiry, sorry car noob here..

Hah, well I was recommended to upgrade my spark plugs by various shops and tuners because I was FI.

These spark plugs are able to handle advanced levels of tuning and provide Improved ignition performance, durability and anti-carbon build-up.

This, along with injectors and with a fuel pump (along with FI) gave me a big increase in power. I recommend these three upgrades.

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