APR flashed ECU (91 Oct Program) ($200 + Shipping)
out of a 2003 Jetta 1.8T GLS 5 SPD
Immo not defeated.
06A 906 032 LP
It should work in an 03 GTI. They had the same engine, ECU, etc.
Im talking about the program VW installs on it called "IMMO III" its supposed to prevent theft and such. Makes it a little difficult to swap the ECU from one car to another. You would need to pay the dealership to unlock it, APR could unlock it, or you might even be able to do it yourself with APR's program and a VAGCOM or Cheetah cable. I haven't had the time to be able to sit down and do it myself otherwise I would have done it. Every time I think about it there is too much going on.