I have one. "Not quite" plug and play CDI for Mopar ECU There are other threads on here about them.
Don't know if the 5C/ 6C is the same, but the BIG ISSUE on any CD is that the COIL DOES NOT get power from the vehicle harness. The coil is ONLY connected to the BOX and actually, the coil NEG is actually grounded. So the ballast wiring to the coil must be removed and modified a bit
Thread on the 6C
MSD - 6C vintage box