Dynomax VT mufflers

before I would get one of those, I would install the longest oval 3-pass muffler on there, I could find with at least a 3" pipe from the headers, and put the valve at the back bumper.
The Dynomax STs are on my car with 3" outlets; very nice, IMP of course.
Oh yeah, turn downs just aft of the rear valence and just inside the bumper rearmost edge, so I can't skin my shins on them. No shotgun pipes!