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I've read multiple posts that the Autolite AR3934 is the plug to use. Only problem is that these are rare in Canada. Is there an NGK equivalent?
3924 is the projected tip plug which is fine unless using boost or NOX.

3934 is the race plug for boost, NOX or high static c/r in a racing environment.



SJ
used 2b RHP



:D
 

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Discussion Starter #3
3924 is the projected tip plug which is fine unless using boost or NOX.

3934 is the race plug for boost, NOX or high static c/r in a racing environment.



SJ
used 2b RHP



:D
Ooops, maybe I should have specified. Finding Autolites in Canada is extremely hard. Was hoping for an alternate NGK or Bosch part number that would be the same.
 
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