newbie question
 

I just purchased a '11 NISMO over the weekend and would like to eliminate the possibilities of having some surprises after my modification process. I ordered an ARK Grip exhaust and ARK high flow cats from Alex at ARK. I also have a Stillen G3 intake on the way. I would like to know if I will need to have my car tuned after installing these few items? If so, can anyone personally recommend someplace in St. Louis that does tuning on 370s?

Thanks for your help.

Do you NEED to? Your car won't explode, but you will gain better throttle response and a bit more power. You probably are running pretty lean with the breather mods but the Nismo is tuned a bit better from the factory.