I heard it wasnt a good idea for subarus. But i was wondering if i ened up putting all that into my car and get it tuned by AP if that would make a diff

 

You don't need to run the Apexi S-AFC for Subarus if you are planning to use the Cobb AP. The Cobb AP will already adjust the air/fuel ratio, boost, etc.

The Apexi AVC-R also won't be needed unless you're running a huge turbo with an external wastegate.

Let me know if you have more questions.

thanks,
Preston
www.gruppe-s.com