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surfbeast · 02-10-2004, 06:34 AM

Hey all,

I was just given a set of Denso Iridium IT20 plugs. They are -1 heat range from stock plugs. Will they hurt the performance or damage the engine in any way now that I am not running a power adder

Or should I just save them till later and keep running the stock plugs.

Thanks

02-10-2004, 06:34 AM	#1
surfbeast Registered Member Join Date: Feb 2002 Location: Maryville,TN Posts: 415	Colder plug help! Hey all, I was just given a set of Denso Iridium IT20 plugs. They are -1 heat range from stock plugs. Will they hurt the performance or damage the engine in any way now that I am not running a power adder Or should I just save them till later and keep running the stock plugs. Thanks __________________ 98 GT / convertable -98 Saleen engine, Saleen appearance pkg. SHM cams,P&P NPI heads, and so much more!