OH MY GOD LOL
I got the dudes at CRD to run a diagnostics check on my ECU, and they found that it was indeed an ignition problem. They said it was either the coil packs or something called the "crank angle sensor". I couldn't be happier, I can actually FEEL the difference with the splitfires, the whole car just seems so much more vigorous!!!! lol!
ONE PROBLEM HOWEVER: they quoted me 495 + 95 labour for the splitfires, but they assumed that the RB25DE was in a similar configuration to the RB25DET, it turns out though that the N/A engine has TWO THROTTLE BODIES - WTFWTFWTF WHO KNEW THIS - compared to the Turbo which has only one, and this made the whole process twice as long, they took two hours to do it instead of 1, and had to charge me extra for the labour, and coz i got them to run the diagnostics check as well, it totalled to something around $730!!! - But I tell ya what, its SOO worth it.
SplitFire Coil Packs SF-DIS-008 = $495
2 Hours labour + diagnostics check and ECU reset = $235
damn, not only R34 owners, but EVERYONE should buy a set of these.
p.s. i felt so ridiculous rocking up there with a 4-door N/A skyline, when all the other cars you see there are r32/33 GTR's and 200sx s15's fark....