If you go to a shop, you should probably pay them a little something for their time to do this. I know it's not much time, but if you really want it done it should be worth something.

With that said, Call 770-923-1550 and ask for Arash or Sam at Mahdavi in Lilburn. They are well versed on Garrett, Turbonetics, Greddy, and just about any other turbo manufacturer.

Good luck with your quest.

BTW, are you trying to get a full refund and send it back or just a partial refund and keep it?