ecu serial number question!
 

Ok i found another 1jz ECU but this is the serial number 89661-22470, I think that comes out of a chaser? Not positive tho. My stock ecu is 89661-24280. Both automatic ecus. Whats the difference in these ecus? the plugs are the same but the serial numbers are different.. Does 1 rev higher? Enlighten me :)