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New NGK BUR7EQ / BUR9EQ Spark Plugs
This might be old news for some of you...
I never realized that NGK redesigned these plugs recently?
It looks like there's a really minor difference in "reach" spec...
Also, the center electrode matterial has been changed?
The BIG difference is the with the "semi surface" tip to a regular, single electrode tip?
These what Mazda recommends for the RX-8 now?
-Ted
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