u/1mAfraidofAmericans

Hello everyone. I once bought a diagbox harness and software but it was all for nothing because it didn't come with the chip so it was a waste of time and money.

I'd like to try again, so I looked at the prices on aliexpress and it was all over the place. There were some for 86 euros others for 146.

Any suggestions as to what to look out for?

Thanks in advance