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Home >> Subaru >> 2021 >> WRX STI >> Repair and Diagnosis >> Engine Performance >> Engine Ignition System (2.5L) >> General Description >> Specification
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Engine Ignition System (2.5L): General Description: Specification

Item Specifications
Ignition coil Type FK0368
Ignition system Independent ignition coil
Manufacturer Diamond Electric
Spark plug Manufacturer and type NGK: ILFR7H
Thread size (diameter, pitch, length) mm 14, 1.25, 26.5
Spark plug gap mm (in) Standard 0.5 - 0.6 (0.019 - 0.023)
Electrode Center electrode: Iridium Ground electrode: Platinum