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NGK Stock Heat Range Iridium Spark Plugs Subaru STI 2004-2019

Regular price $30.99 Sale price

Compare at $35.00

SKU: 6619-4

Description

Part of our free upgrade from ground to 2 day shipping program!

Why NGK Iridium? More Durability and a Higher Melting Point compared to Platinum, better center electrode anti-oxidation and anti-erosion, improved ignition, superior anti-fouling, lower required voltage, new metal shell plating process for better anti-corrosion. One Step Colder plugs are reccomended for cars with heavy modifications. These NGK plugs will get your Turbo Subaru running smoother and free up some power through increased efficiency and increased heat resistance. These are available in stock heat or one step colder for cars running approximately 100 horsepower more than stock. Please make sure you choose the correct vehicle below. Please Note:Iridium plugs are able to use larger gap setting with less voltage. Some customers choose to regap these plugs to correct misfiring or tune for optimal spark -- do so at your own risk -- slide-type plug gapper will damage the fragile iridium tip. PRICE IS FOR A SET OF FOUR SPARK PLUGS.

Reviews

Customer Reviews

Based on 3 reviews
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S
S.
Best plugs when going for oem heat ranges

Fast shipping

D
D.M.
Amazing! Priced Well!

Previous owner never changed my plugs and made a huge improvement.

A
A.K.
Fast and priced well!

These came on a day early and worked perfectly. Definitely would recommend.