Now I know you all are probably going to get mad at me for asking this question, but I just wanted to be sure before I spent the money. I recently purchased a 1986 rx-7 gxl with a 13bt swap. Now the guy I got it from said it needed an "upgraded ecu" to run right. This just means that I need a series five ecu out of a TII right? Nothing special?
Alright, Thanks for the help

 

It needs a TII ecu, preferably the same series as the motor. So if it's an S4 motor, you want an S4 ecu.