Swap one step colder plugs on stock motor?
#1
MBWorld Fanatic!
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Swap one step colder plugs on stock motor?
I just got my NGK IX Iridiums in at range 7. Was curious as to whether I can install them now or should I wait until I get the pulley and tune?
I know stock heat range is 6 and what not, but it would be nice to start getting this stuff in step by step.
I know stock heat range is 6 and what not, but it would be nice to start getting this stuff in step by step.