Originally Posted by Romio
I was under the impression that the 451A2 was for the SRT.
I believe the BDD451A2 was specifically developed for the AMG's, and is a milder version, which I have heard is backward compatible to the others.
I have not heard of any restrictions or problems with installing the BDD451A in a SRT XFire though?
Perhaps a little investigation is needed, I'll get back with you.
XFH