Denso U-Groove Traditional Spark Plugs Stock Heat Range 3381 - Subaru EJ25 Turbo Models (inc. 2004+ STI / 2006-2014 WRX)

  • Sale
  • $22.32
  • Regular price $32.32


This innovative Denso spark plug comes equipped 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.

More importantly during regular service intervals it is wise to check your spark plugs for wear, because new spark plugs will ensure for a healthy running engine, increased fuel economy, and better response. These are the factory heat range spark plugs for your vehicle, and should be a direct fitment. 

Sold in a set of 4.