999 automotive is crap my mate work there. there have shit parts. got a intercooler from there. the KLS one, cramps are shit. driving my s14 and the cooler pipe pop off
Head over to Queensland Ignition leads at Kallangur and have them make you up a set of either Magnacores or their own spiral ones. I have had their spiral ones on my car for probably 5 years now without a drama. Quite a few other guys up here are using them as well. Best of all, the guys there are great to deal with and will custom make them for you (longer, shorter, different coloured boots etc) on the spot.
I got a set made up from a guy that makes them for gas conversions, the best quality leads out there, made a huge difference to my car, were right on the money and he will post, he can make any custom lead.