Here is the outcome...............................
I told the buyer to ship it back to me and I would cover the shipping both ways. I said once I received the tuner , I would refund the money via PayPal. On the day he was going to ship it to me, he sent me a message saying that if I would give him more of a discount on the tuner, he would keep it and send it to Magnum Dynalab to be upgraded for 350.00
The way I figured it was this: If I took it back, I would have to refund him 500.00 and start over. Tuners are a hard sell these days, so I gave him a further discount and called it a day, or so I thought. I issued the partial refund via PayPal to cover myself, but for some reason PayPal didn't instantly transfer the money to him, they said it would take 5 business days to complete.
I sent the guy email telling him this. 3 days later, he is asking me where his refund was. That is when I called PayPal and was told they already informed him it would take until Wednesday to get the refund. On Wednesday, he got the refund and he gave me positive feedback.
I haven't given him any feedback because if I do it will be negative and at this point, I am tired of dealing with him. I am sure he did all this purposely to get a cheaper price. Bottom line, he got a 1970.00 tuner in excellent shape for 300.00. I got taken big time but at least I am done with this jerk.