^^Wrong section.... But just an FYI...
Also, a base Z with stock bolts ons usually has more power than your stock Nismo anyways... Besides aesthetics and obvious suspension differences, your Nismo only has 18hp more due to an exhaust and a tune..... Any base Z with exhuast and a tune would have the same power (~approx). Then if this base Z were to add test pipes and intake it would have more power.....
You did a superb job running a 12.98 though.