Spark Plugs
Jul 20, 2005 | 09:20 PM
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Spark Plugs
Does anyone know what make and model of spark plugs are fitted as std to the 03WRX?.
Jul 21, 2005 | 08:43 AM
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Jul 21, 2005 | 01:15 PM
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From: Half way up
Jim do you know what the difference is between the oem (NGK PFR6G) and NGK PFR7B plugs..?
I've heard they are cooler, does this mean the higher the number the cooler the plug..?
Jul 21, 2005 | 08:24 PM
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Exactly, if you upped the boost or have many mods use one number colder plugs
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