Is there such a thing as a good "mail order" tune?

Yes, you can get a good tune by mail – or e-mail – If you are willing to do some work on your end.

If you’re not in a position to get your car dyno-tuned, you can still get a decent tune by mail.  You’ll need to give your tuner the proper information about your specific vehicle.  Next, you’ll need to provide them with a datalog of your vehicle.  Working together with the tuner, and providing what’s needed by him, you can absolutely receive a good mail order tune.

Datalogging software is free. most of the time from the software company that you are using to tune your vehicle. Get with your tuner, grab your laptop and drive your vehicle recording the pertinent information they are asking for, email it to them and wait for the dialed in tune via email!