what's the difference with the s-tune version and where can you buy it? And I'm assuming you are talking about the strut tower bar in the engine bay? As far as my knowledge, I thought the Nismo strut tower bar was pretty much the same: it has 2 extra chassis supports connected to the bar is the only difference.
Here is a pic of what I think you are referring to and what I was describing:
If that's the case, I'd be interested as well. Unless the Zele titanium strut tower bar get significantly cheaper...
I'd also like that red Nismo engine cover and the Nismo/Yamaha dampers/lateral stabilizers in the front and rear.