Brand New NGK IX plugs 4 EJ257 1 step colder
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Brand New NGK IX plugs 4 EJ257 1 step colder
Brand new!
Fits the 2004 - 2006 Impreza WRX STi (excluding the 2.0L WRX)
Includes (4) Iridium IX Spark Plugs
These plugs come pre-gapped (to 0.030") within factory spec for the STi (No adjustment necessary!)
These spark plugs are one heat range colder than the stock STi plugs. Going one heat range colder reduces the chance of preignition (similar to detonation, but with the same devastating results) due to the spark plug overheating, but it isn't too cold to cause spark plug fouling.
Part #LFR7AIX 2309
Only asking $32 shipped
Fits the 2004 - 2006 Impreza WRX STi (excluding the 2.0L WRX)
Includes (4) Iridium IX Spark Plugs
These plugs come pre-gapped (to 0.030") within factory spec for the STi (No adjustment necessary!)
These spark plugs are one heat range colder than the stock STi plugs. Going one heat range colder reduces the chance of preignition (similar to detonation, but with the same devastating results) due to the spark plug overheating, but it isn't too cold to cause spark plug fouling.
Part #LFR7AIX 2309
Only asking $32 shipped
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