Originally Posted by Team Plutonium
Depends on the mods, some hold their value pretty well, and can be sold very fast... anything Brembo, Akra, KW, etc... But you are right, selling the car, or trading it-in becomes a lot harder. Dealers would never touch it, and you really need to find the "one" right buyer.
Yes, you can certainly sell back some of your mods, but the problem is this: Installing your mods is a joy. Removing them and re-installing the stock parts is just an added pain and expense again.
Kudos to all of you who have really built up your M3s. I do know how much fun this can be. I just hope that you all plan on keeping it for some time. There was a post in the classifieds from a guy who has put over $60,000 in mods into his M3 and is now selling off everything after only 1500 miles with the mods !!!!! I don't care how much money one has, this is nuts.