Up-to-date listings of www.spark-plugs.org's top items (by Sales Rank). http://www.spark-plugs.org/ en-us Denso (5304) IK20 Iridium Spark Plug, Pack of 1 -- $7.50 http://www.spark-plugs.org/denso-5304-ik20-iridium-spark-plug-pack-of-1/B000M6UR82ID.html http://www.spark-plugs.org/denso-5304-ik20-iridium-spark-plug-pack-of-1/B000M6UR82ID.html Bosch (4501) FGR8DQI Platinum IR Fusion Spark Plug, Pack of 1 -- $2.44 http://www.spark-plugs.org/bosch-4501-fgr8dqi-platinum-ir-fusion-spark-plug-pack-of-1/B000PL2AZCID.html http://www.spark-plugs.org/bosch-4501-fgr8dqi-platinum-ir-fusion-spark-plug-pack-of-1/B000PL2AZCID.html Bosch (4505) HGR8DQI Platinum IR Fusion Spark Plug, Pack of 1 -- $2.19 http://www.spark-plugs.org/bosch-4505-hgr8dqi-platinum-ir-fusion-spark-plug-pack-of-1/B000PL2B3IID.html http://www.spark-plugs.org/bosch-4505-hgr8dqi-platinum-ir-fusion-spark-plug-pack-of-1/B000PL2B3IID.html NGK (3199) BKR6EQUP Multi-Ground Spark Plug, Pack of 1 -- $7.49 http://www.spark-plugs.org/ngk-3199-bkr6equp-multi-ground-spark-plug-pack-of-1/B000GX9FSYID.html http://www.spark-plugs.org/ngk-3199-bkr6equp-multi-ground-spark-plug-pack-of-1/B000GX9FSYID.html Bosch (4508) FGR8LQI0 8 Platinum IR Fusion Spark Plug, Pack of 1 -- $2.44 http://www.spark-plugs.org/bosch-4508-fgr8lqi0-8-platinum-ir-fusion-spark-plug-pack-of-1/B000PL0CTIID.html http://www.spark-plugs.org/bosch-4508-fgr8lqi0-8-platinum-ir-fusion-spark-plug-pack-of-1/B000PL0CTIID.html NGK (5464) BKR5EIX-11 Iridium IX Spark Plug, Pack of 1 -- $5.00 http://www.spark-plugs.org/ngk-5464-bkr5eix-11-iridium-ix-spark-plug-pack-of-1/B000A8JLIYID.html http://www.spark-plugs.org/ngk-5464-bkr5eix-11-iridium-ix-spark-plug-pack-of-1/B000A8JLIYID.html NGK B8ES - Spark Plug -- $1.68 http://www.spark-plugs.org/ngk-b8es-spark-plug/B000N8LPOYID.html http://www.spark-plugs.org/ngk-b8es-spark-plug/B000N8LPOYID.html E3 Spark Plugs E3.36 Power Sports Spark Plug with Diamond Fire Technology -- $5.95 http://www.spark-plugs.org/e3-spark-plugs-e336-power-sports-spark-plug-with-diamond-fire-technology/B0022ZAFOCID.html http://www.spark-plugs.org/e3-spark-plugs-e336-power-sports-spark-plug-with-diamond-fire-technology/B0022ZAFOCID.html NGK CR9EIX - Iridium IX Spark Plug -- $6.99 http://www.spark-plugs.org/ngk-cr9eix-iridium-ix-spark-plug/B001LOTW4OID.html http://www.spark-plugs.org/ngk-cr9eix-iridium-ix-spark-plug/B001LOTW4OID.html NGK (6240) PLFR5A-11 Laser Platinum Spark Plug, Pack of 1 -- $10.32 http://www.spark-plugs.org/ngk-6240-plfr5a-11-laser-platinum-spark-plug-pack-of-1/B000BYERBIID.html http://www.spark-plugs.org/ngk-6240-plfr5a-11-laser-platinum-spark-plug-pack-of-1/B000BYERBIID.html