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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.
TECH TIP: These plugs are good for STi's with no mods and stock HP levels. Stock heat range.
Price includes a set of (4) spark plugs
Fits: Subaru STi 2004-2007
$31.95
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