I sure hope you got to keep all the good spare parts they removed from your car. And I hope they did a much better job of fixing the car than doing the diagnostics of what was wrong with it. You know that to do the SC swap, the fuel rail and all your injectors need to be removed and reinstalled properly. Then the new SC needs to be properly fitted back to the intercooler that sits right under it. This thing usues almost all Torc nuts and bolts, so the shop best have a complete set or T-n and E-n sockets available.
If you have a spare pulley, send it to me and I won't tell.