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Old 08-10-2003, 10:23 PM
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Cigar Havana Cigar Havana is offline
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Join Date: Jan 2003
Location: Toronto Canada
Posts: 378
Spark Plugs for 420 SEL

Has anyone tried the new Beru Ultra-X plugs in a 420 SEL? This is one with 4 earth ground electrodes.

All comments and recommendations are appreciated!
1989 420 SEL
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