Thread: Spark plugs?
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Old 05-20-2014, 07:56 AM   #5
2012LS3VERT

 
Drives: 2012 2SSRS Vert, Black w/M6
Join Date: Jan 2013
Location: Montgomery, AL
Posts: 1,265
3526 for the copper, 3960 for the iridium version. 3346 is the same heat range, but in a non-projected tip (BR7EF).
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