Most problems are all about money...not the Crossfire. If you have lots of money or willing to spend some to your crossfire, your problem is solved. 350z'ers have problems about their looks anyway even with the power they have. The problem regarding power can be solve easily with the Startech, Renntech or Brabus upgrade which can cost you bigtime but your gain is a Crossfire styling and power. That's all it takes to end our misery about power.
Enjoy it now, save and be happy tomorrow