Spark Plugs
I've been looking into ordering NGK sparkplugs from PFYC.COM.
Is upgrading to NGK sparkplugs worth it? can it cause some sort of problems?
And last question:
on PFYC.COM they have a few type of plugs:
TR55 Set of 6
TR55IX iridium set of 6
" " set of 8
" " set of 8
TR6 set of 6
TR6 Set of 8
Which one is the best and fits my 3.4 alero?
Thanx.
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