Hi, this is my experience with Sam and 517trans right now.
I ordered a full upgrade to my rs6 box with Sam and during the selling part Sam was very helpfull and friendly.
He responded to emails within a day and was friendly on the phone.
He promised me that he would rebuild my box within 4 days.
So I send over a spare box just to be on the safe side and I agreed with Sam that I would send my box as soon as I had the spare box back.
He needed a extra box for a client and I could get my hands on one so I thought win win.
I evens paid him in full in advance to show good faith and hope on a fast return of the rebuild box.
4 day became 4 weeks that became 4 months and eventually 5,5 months and 10 phone calls and 30 emails before I got my box back. Each week I emailed or called sam I got another excuse or no response at all.
Eventually when I send a couple of very angry mails and called him a couple of times he mailed me that the box was ready for shipment. So I arranged my shipping agent to pick up the crate and 2 hours later I got a call from my shipping agent that he could not pick it up because it was not ready. That went on for almost 3 weeks and then I got word that the box was I a plane on my way to me.
I recieved the box and the outside looked amaturistic, it was spayed with a spaycan and all the cables and
Stickers were also painted. But I thougt the outside does not matter it is all about the inside.
I had a Dutch Audi specialist change the box and also change the downpipes, inter coolers, sensors, egt, lambda, gaskets etc etc. I changed everything were you need to take out the engine for.
And after a test run were the box did something strange. Everything was good. Now 7000km and MRC a stage 2 upgrade later and the box is still holding. With 553ps and 822nm.
I also send my old box over and I still have to get 250usd back from Sam but I gave up because he does not respond to my emails anymore and I hope he will be happy with my 250usd.
I am still hoping that Sam''s upgrade is as good as it is posted over on this forum because he is a terrible businessmen and he has not kept his word once.
My advice is don't do business with him and look for a company that do what they say and treat customers that pay over 5000usd in advance with respect.