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Old 05-01-2002, 01:04 PM
momentum momentum is offline
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Join Date: Sep 2000
Location: beaumont, texas
Posts: 226
Bosch Spark Plug Question

I recently changed the spark plugs on my 300e with the bosch copper ones. Does anyone know if these plugs come already gapped? I made the mistake of not checking them before putting them in. If they aren't gaped to the oem specifications can this cause a rough idle?
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