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NGK (4905) R7438-8 Racing Spark Plug, Pack of 1

4.7 (1) Write Review
Free shipping on orders over $29.99

$46.61

$ 20 .99 $20.99

In Stock

About this item

  • You can depend on NGK for quality and reliability
  • Requires less voltage to ionize the plug gap
  • Fine wire iridium center electrode
  • Platinum tipped ground electrode
  • Allows a stronger spark



Zonghui L.
Reviewed in the United States on November 12, 2017
awesome plugs More stable under boost than the 7437-8 Car is making 663whp and 732wtq on a mustang awd dyno
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