while looking threw mazdatrix at the motor mounts there is a different mount for Automatics and SE's than a regular 12amanual...doses this mean all id have to do is get the motor mounts for the se's, that would let me drop in a 13b....?

 

nope, the se's had a different crossmember that places the 13b farter forward a tad to make it all line up
mazdatrix has a motor mount thats got an offset to it to allow you to mount an se motor though, look for that piece and you'll see what i mean

 

yelp x member is different. You can use the 12a mount if you hammer it out flat, rebend the ends, drill the mount out about 3/4" and then crop the edge of the mount on the drivers side, or spend $90 and buy a RB mount