No worries, everyone is entitled to free speech I just felt it was a bit harsh on Niko, I do try to ensure I sell the best products which is why I stay clear of sloped spacers, unbranded items and most replica's. Motordyne is argueably the best spacer brand on the market and it is proven, as with most performance mods you get more out of them with an uprev as we all know but I didn't sell the spacer to Niko saying it will give you 15bhp extra, he pm'd me asking if I had any in stock and I did.
As for this....
Nissan R&D would have done countless tests to find the optimal air circulation around the plenum, agreed?
Completely disagree im afraid... do you think if that was the case then they wouldnt have designed a better:
Exhaust
Airbox
Ypipe
Cats
Aerodynamics
ECU
Im glad they didn't though as there would be no need for suppliers like me