Honda Civic Spark | Glow Plugs

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	NGK Iridium Spark Plug Honda Civic SI 02-05  Model Number: IZFR6K-11   View Price Iridium is a precious metal that is 6 times harder and 8 times stronger than platinum, it has a 1,200(=F) higher melting point than platinum and conducts electricity better. This makes it possible to create the finest wire center electrode ever. Prior till now, platinum had been favored for long life or performance spark plugs due to its high melting point, also the technology did not exist to machine and bond iridium on a spark plug electrode(at least in a cost effective manner). Iridium indust...