Description
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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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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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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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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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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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,...