FI Exhaust Q's
 

So... I currently own a 2014 nismo totally stock and it is my daily driver. I am looking to add a Fast Intentions exhaust 18" resonated and HFC along with a Stillen G3 intake. My question is after getting all of these on my car will I need a tune? Also is there anyone else with the same setup? If so how do you like it.. thanks in advance guys!

No you will not need a tune. Your car's ECU will adjust on its own. However, if you want to maximize the hp gains after you mod your car, a tune is recommended.

I thought that anything with over two breathing mods would benefit from a tune? Could be wrong.

The stock ECU will adjust the basic stuff to a point. But to get the most out of it. A tune will clean up the A/F, throttle, fans, and some other stuff.

ok cool since this is my daily driver, and I don't use it on the track at all I'll just stick with no tune. Appreciate it guys!

If you don't plan on getting a tune, skip one of the mods you have planned. If you're going with all of them, get a tune for sure. You should get it tuned. You gain a lot more than just peak power. It's money well spent.