A couple weeks ago I was feeling a little ambitious and went and bought a Diablo i3 8345 Platinum tuner. It was around $400 and then after buying I had something come up and need that cash now. Seller won't take it back even though I never used it because it is an electronic and I updated it. How much do you think I could get for it selling it myself? I'm new at this so don't have a lot of background in how much things go for on the forums and Craigslist. Thanks for your help. Also hope this doesn't break any rules, I'm not trying to do a feeler, more just getting an idea of what I've gotten myself into.