Yet another stupid question

[TStroop]

If you are putting the I engine into the 87 e you will need and 87 I or Is wiring harness so that your windows and gauges will work correctly.

Im going to purchase a 87i harness...

[TStroop]

Listen and listen very carefully.

If you use an 87 325i/is/ic engine harness EVERYTHING will plug and play in to your 325e. You will not need to modify ONE wire. There's no catch here, this is a real life fact. You should stop ignoring the good advice Shant has given you.

You can use ANY M20B25 DME with this harness and it will work.

Like my previous reply, I wasn't ignoring him..appreciate the advice will be buying a 87 325i/is/ic within the next couple days. I was just agreeing with the ac wire statement haha damn take it easy on me