ecu question
 

im getting a jdm s5 motor for my s4. The question will i need an s5 ecu

yea ecu and wiring, or you can change the Electric omp by changing the front cover and geting a non Electric omp, and u can run your ecu, if its a n333 or n332 if its a s4 tii ,

yeah i have an s4 t2 and also the motor is going to come with the uncut wiring harness

so yea all u might need is the ecu, but the ecu is going be inside your motor bay, cuz its a jspec wiring , so it goes to the left not the right like us spec,

Read this for more info, it might help:
http://www.rotaryresurrection.com/2ndgen/techmenu.html

This will take you to the S5 to S4:
http://www.rotaryresurrection.com/2n...o_s4_swap.html