Make sure to include the TCM that goes with the new CVT. It needs to have a "CVT / TCM CALIBRATION DATA “WRITE” PROCEDURE" performed if you're using the old TCM. The IP Char data is stored in the Valve Body on a 2007 to present, and needs to be read into the TCM by using a scanner to erase the old data. Once erasure is performed, the new data is automatically read-in. If that's not performed, then your TCM would try to run the CVT with data from the old valve body. All kinds of garbage-performance can result.