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Putting an S4 engine in my first gen and I like be using the old ignition system. I am going to buy plugs for it and I am wondering if I should use the second gen Hei system plugs or the same plugs I have been using?
Hello folks,
Most of the folks have spoken with (as well as a guy from Mazdatrix who has the same setup) tend to agree buy plugs that match the ignition system.
Thanks