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sav03cobra · 04-06-2018, 07:07 PM

I think the SS stock heat range is a 6.

A couple performance sites list: NGK IRIDIUM IX LTR7IX-11 PERFORMANCE SPARK PLUGS HEAT RANGE 7 for nitrous/fi. And I think that’s only one step colder than stock.

So maybe a NGK (6509) LTR6IX-11 Iridium IX?

04-06-2018, 07:07 PM	#6
sav03cobra SS Copbait R.I. Drives: 2016 Camaro 2SS Join Date: Dec 2016 Location: Aquidneck island Posts: 217	I think the SS stock heat range is a 6. A couple performance sites list: NGK IRIDIUM IX LTR7IX-11 PERFORMANCE SPARK PLUGS HEAT RANGE 7 for nitrous/fi. And I think that’s only one step colder than stock. So maybe a NGK (6509) LTR6IX-11 Iridium IX?