Ok a topic thats been beaten to death.

In Bat's catalog they list and sell the
22FS, and refer to it as " the best choice
for use in the Duratec V6 engines"

so whats the difference?

I'm slightly confused on this one.

Thanks for any immediate help

Part # listed on box is AGSF 22FSM


99 Cougar V6 Tourmaline Green: MTX, KKM, Borla Dual...