Find BCredliner, he has cutouts and a 4.6is.

As a side note, you don't need cutouts to sound tame in the neighborhood and beast on the freeway. A good exhaust can give you a tame demeanor untill you open it up and it becomes a muscle car.

As an owner of 2 4.6 engines running two totally different rigs, I can assure you that stock e53 exhaust note leaves me wanting more from start up to redline however with catback free flow, can sound like the apocalypse about to begin at 4k rpm. Just say'n. There are alternatives out there. The removal of just the scuba tank resonators can be a quite nice step up in note.

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'03 4.6is (the wife' s ride)