I recently bought a 2000 GTS with high flow cats and side exit conversion not sure what mufflers or cats with a terrible drone. I want to keep the side exit but try to eliminate the drone. Anyone done this? If so, by what method? I don't mind it being loud just can't handle the drone. Was thinking I like the Corsa rear exit sound. Has anyone installed a corsa side exit setup with high flow cats on a GTS? How does it sound and more important...did it eliminate the drone?