Bosch (7900) WR7DC+ Super Plus Spark Plug， (Pack of 1)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Heavy-duty yttrium-enhanced copper core center electrode for superior reliability and increased resistance to spark erosion for a 50% longer performance life vs. even OE plugs</li><li>Tapered， v-profile nickel chromium ground electrodes improves cold start performance and increases fuel ignitability</li><li>Angular， five-ribbed insulator design prevents misfire due to current leakage</li><li>Nickel-plated rolled threads provides complete anti-seize and corrosion protection</li><li>Metal glass fused resistor maximizes interference suppression</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31f-Fy60bzL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/21%2B%2B5CQlRcL.jpg" noproxy>