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Denso U-Groove Traditional Spark Plug Stock Heat Range 3381 Subaru EJ25 Turbo Models inc. 2004+ STI

RallySport Direct carries a great variety of Denso Spark Plugs to keep the maintenance up on your vehicle, or to accommodate certain modifications you may have performed.

Here, you are looking at the Denso U-Groove Traditional Spark plugs. This spark plug has been designed with Denso’s patented U-shaped ground electrode. The U-Groove forms a channel for the spark nucleus to form at the instant of ignition, which generates a more potent spark.

DETAILS:

• 3381 part number
• Stock heat range
• Features Denso’s patented U-shaped ground electrode
• Direct fitment factory replacement
• Sold individually