I did it myself. I used an angle grinder and cut 1/4 to 1/2 a coil off at a time. Its a little bit of trial an error, but if you have a free day its worth it. Just remember, its easier to have to cut more off, than to put it back on. Take your time, and never ever use heat on these springs. If you're good mechanically, you could do it yourself, but becareful. If you have any doubt, take it somewhere, or spend the money on springs. And remember these were stock springs, I wouldn't cut aftermarket ones.
2000 Mustang GT-Former giggle gas addict
1990 Mustang GT w/ Vortech V3
***resident gun idiot***