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We recommend heat range 6 for SR's with just bolt-on upgrades up to 300hp.
For KA's, heat range 6 (1 step colder) will work well up to 300hp as well.
*Sold in packs of 4
We recommend heat range 6 for SR's with just bolt-on upgrades up to 300hp.
For KA's, heat range 6 (1 step colder) will work well up to 300hp as well.
*Sold in packs of 4
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NGK
We recommend heat range 7 for SR's putting down 300-450hp.If you are at 450hp, and doing long sustained wide open throttle events such as road racing, we recommend stepping up to heat range 8 for...
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NGK
We recommend heat range 7 for SR's putting down 300-450hp.If you are at 450hp, and doing long sustained wide open throttle events such as road racing, we recommend stepping up to heat range 8 for...
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NGK
This is stock heat range for the SR20DET engines. Recommended for basic bolt-on modifications. Recommended for Boosted KA24's The improved throttle response, superior anti-fouling and...
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NGK
We recommend heat range 8 for those putting out 500-600hp and doing long sustained wide open throttle racing. Designed specifically for the performance enthusiast. Iridium IX® offers...
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NGK
These are for SR20DET, fits: S13 / S14 / S15.These spark plugs are two step colder, recommended for SR20DET's making 600hp+.If you are road racing your SR20, and maintain long periods of WOT,...
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NGK
NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in...
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NGK
This is stock heat range for RB's. We recommend BKR6EIX for stock setup to 400hp range. The improved throttle response, superior anti-fouling and high-ignitability makes Iridium...
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NGK
1JZ / 2JZ Stock OEM heat range Iridium spark plugs. The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® ideal for the performance enthusiast. Iridium’s...
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NGK
Stock heat range Iridium spark plugs for K-series engines. The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® ideal for the performance enthusiast...