Any good upgrade parts for GTR 07 R35??

[GTR R35]

Ive just got enough money to buy my self a gtr, and have spare to tune it up, is there any good hints and tips or parts??:, Thanks.

GTR R35:

 

[SGETI]

https://www.gtplanet.net/forum/showthread.php?t=135268

the link above will answer your question and some you have not even thought of yet.