Apexi VAFC 2/SAFC will both work?

[mc24]

I bought the Apexi V-AFC 2 not knowing they made the S-AFC 2 as well did I just waste my money or can both of them work?
Anyone using one?
Have a 94 tt stealth so needing to adjust the karman signal the ecu sees.

[KeithMac]

It says its identical to the safc-2 but with added vtec control for Hondas. Power it up off the car first and cycle through the menus to double check you have karman hz airflow mode before you fit it..

Honda use MAP sensors on most of their cars.