Taylor, you gain nothing over a single/twin ground clearance wise with our systems, as the single silencer still uses the outer shell of the silencer, just has straight through internals (we only paid for one jig initially this way).
As Jezza has already said, any 63mm stainless system will be loud on a supercharged car, the Bastuk exhausts had 3 silencers, and are still very loud. They sound the tits, but if you want to cruise down the motorway for miles, then a standard system would be better suited.
Single silencer on a supercharged car is mental IMO- but it’s up to you
Also our center silencer boxes are shaped with tapers, so they don't catch over speedbumps etc.
Will try and dig some pics out for you
Cheers
Pete