From what I've gathered the SRT Intake comes with a mapped ECU piggyback. Thats where the gain is produced. With the Injen and a S-AFC, can the results be achieved as well? With the S-AFC, adjustments can be made for exhaust, headers and race pipe. Are my assumptions correct? I think I posted a question regarding the use of the S-AFC in the event of F/I. Is there a use for the S-AFC when one does join the F/I ranks?