We have a Corsa system on our 2008 Charger Daytona development vehicle.

It's drone free even with long-tube headers.

With the 5.7L HEMIs and MDS, you have to be careful on the type of cat-back exhaust you put on these cars.

The other alterantive is eliminate the MDS with a a Diablo Predator hand-held tuner but your MPGs may suffer.