superfast Posted April 15, 2009 Share Posted April 15, 2009 I have a 97 Lexus LS400. Does anyone know the OEM spark plug wire gage? I'd like to get the aftermarket wire set in the same diameter so I can re-use all the old hardware. Btw, which brand do you recommend for the wires? Also, is there a noticable improvement in performance when it comes to Iridium plugs such as the the NGK laser Iridium long life, NGK IX Iridium or just all hype? Would a regular platinum plugs be just fine? Thanks in advance. Quote Link to comment Share on other sites More sharing options...
jcrome04 Posted April 15, 2009 Share Posted April 15, 2009 Only use OEM wires. And Denso Iridium Long Life plugs ;) Quote Link to comment Share on other sites More sharing options...
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