Most Impreza 2.0 Turbo engines use a heat grade 6 (PFR6B) plug as standard. SUBARU IMPREZA 2.0 TURBO WRX AND STI 1992-00. SUBARU IMPREZA 2.0 TURBO WRX & STi (Bug Eye / Blob Eye) 2001-2006. Genuine NGK Platinum Spark Plugs.
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