Performance:Nismo vs Touringw/sport pack

Tjai370Z

I have trouble deciding which model to choose. Touring has all the lux features but i do plan on modding and tunning my Z. but why do i see some articles where the touring performs just a bit better? like for example the dsports magazine even proves it and even this

IL Track Tested: 2009 Nissan Nismo 370Z vs. 2009 Nissan 370Z Touring

If I get the nismo I would have to also worry about the interior like for example the audio and nav. and i plan on changing everything anyways because i don't want to keep it stock or look stock.

If I get the full loaded Touringw/sport pack, I wouldn't need to worry about the interior at all and just focus on performance and exterior and might save. but in the nismo i would have to change everything.

both would be around the same price.

now I'm looking back and thinking if its because of those braces in the suspension in the nismo, maybe people didn't remove them?

OH AND ONE MORE QUESTION: people who have the nismos and have removed the black braces that were suppose to be removed, did you notice:
1)better feel over rough roads when you had the braces on? because I have always heard how rough the nismo is to the point its unbearable on the streets.
2)lower in height?(ground clearance)
3) better performance? maybe?

**Sorry for being a newb if by chance I am being one, but this forum is one of the best organized, easiest to use I have seen and i know there are friendly people here whose willing to help out a new dude.
Thank You