Has anyone sent their ECU in to Viezu for an off the shelf tune?

Yes, I sent mine to Paramount, which outsourced it to Viezu. Was an expensive process. In the end with shipping included, just under $1k for 16whp and 40wtq; I measured on before and after dyno runs. Not completely worth it IMO. I am basing that on hp/$, compare that to the 125 shot of nitrous I run (good kit with the safety features and a bunch of accessories) purchased for just over $1k.

Ok thanks jazzyjags. Ya gonna pass on the Viezu tune. $1000 is too much for 16 whp. How much power are you making at the wheels? With what mods?

To be 100% honest, I haven't dynoed on this set up yet. Before I got the whole larger throttle body/ported intake and running a 75 shot instead of 125 i made a little over 450 wheel. I think it was like 454 rwhp. Since then, I turned the shot size up, that was a noticeable difference, and then did the intake project. If I had to guess... on spray, 500ish to the wheels, off spray close to 385-395 at the wheels. I have an AFR gauge to make sure I wont be melting pistons and I blend the fuel a bit just for insurance. I will be going to the shop soon and testing it. I can update once I do.

Most of the performance mods are in the signature, there's a few more that wouldn't fit in there, but I think those are the main ones that make a difference when working together.

I can do it , and I'm here in the states. Most likely with better results than viezu. Pm me for info