the magnacors? the 1.8L wires they sell won't work with the coils...been there, done that...
Best to just stick with good ole NGK copper plugs, either standard BKRs or long reach ZFRs. Nothing else will gain you anything except a thinner wallet & possible problems.
what does ZFR mean?
i believe 99-00 are the same - pre 99 are a different engine