Bosch (4459) HGR9DQP Platinum + 4 Spark Plug， (Pack of 1)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Revolutionary surface air gap firing technology featuring four yttrium-enhanced ground electrodes delivers the longest， most powerful spark for ultimate engine performance</li><li>Four yttrium-enhanced ground electrodes provide optimum access to the air/fuel mixture for the most efficient combustion， plus the yttrium alloy ground electrodes reduce gap wear and oxidation for extended performance life</li><li>Electrode gap is factory set to provide ease of installation - never requires adjustment</li><li>Never requires gapping， the electrode gap is factory-set and never requires adjustment</li><li>Provides ease of installation - never requires adjustment</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31Ffl49YtHL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/21%2B%2B5CQlRcL.jpg" noproxy>