Swapping ECU's

[07audi4]

I am going to be getting rid of my A4 fairly soon (getting another B7 to keep for a longggg time haha). Right now my ECU is flashed with APR software. My question is, if I sell the ECU to someone along with their ECU to put back into my car what will happen when I go to turn the vehicle in? The only thing that I am worried about is that the VIN #'s will not match. Is it something I should worry about? Also wanted to verify that I can get anyones ECU as long as the car has the same transmission (manual to manual, auto to auto) correct? Thank you in advance!

[g_svan]

You(a VAG garage) need to recode the immobilizer. Other than that, it should be a easy swap :)

/g_svan

[AudiWxGuy]

Just get it flashed back to stock and get the reflash when you get your new one. Call APR, I'm sure they'll hook you up.

[dave405nyc]

i think ecus are vin specific, so it might* not work, and if it does work, they might void your warranty if they find out that you're not using the original ecu

[g_svan]

As long as they have the same part number. I got one from the junk yard - It's at VAST Performance for remapping right now :) Should have it back in a couple of weeks - then I can confirm :S

/g_svan