Spark Plug Heat Range - ZR-1 Net Registry Forums

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Spark Plug Heat Range

06-17-2008

#10

flyin ryan

Join Date: Aug 2006

Location: Edmonton, Alberta or Phoenix, Arizona

Posts: 2,736

Re: Spark Plug Heat Range

Quote:

Originally Posted by Pete

Dom,you sure you have 41-630 or 41-603.

Our cars came with FR2LS (replaced by 41-602) the NGK is FR5.

The only one colder is FR1LS NGK 6962/BKR6E

The 41-603 is NGK FR4.

Pete

if you can't get FR5, the plug i use is NGK BKR5EIX, stock no: 6341.

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