Where do the extra horses come from?

Jordo!

I have noticed that Nismo's tend to dyno a bit higher with the same mods, relative to non-Nismos. Initially I thought this was due to different VVEL tuning, but it seems as though they are not different (or there are as yet unidentified other tables in the ECU to play with).

Now my thought is that this is probably more likely due to noise (random differences dyno to dyno reading) and that some of those non-Nismo dynos were on modded but untuned cars.

I can confirm that the OEM H-pipe and catback is MUCH better than either the OEM non-Nismo or Weldina Nismo Y-piped exhaust.

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