I installed my fsport intake over the weekend and my brother brought this to my attention.. With putting on a performance intake on the car does the air fuel ratio need to change or does it do fine with factory setting from the stock intake?

 

It will be fine with the slight WHP you just gained.

 

The ecu can adjust over time. I and many others though recommend doing a hard reset of the car's systems by disconnecting the battery for at least 20 minutes to force the ecu to re-learn everything right then and there. Let idle for 5-10 minutes, and then go drive it like you normally would.

 

^^Like the first two postings. You will be fine. The ecu will automatically adjust to it.