My Brock's Performance CT-DUAL full exhaust lets me put Givi PLX side cases on, with just enough clearance (more would be a waste). I used the SW-MOTECH removable side case racks because they let me use a top case too. The Give PLX rack prevents you from using a top case unless you want to fabricate (i.e., cut, bend, shape, weld, powdercoat, etc.)
And I have a centerstand on (OEM) and it clears the CT-DUAL back pipe just fine. Of course, Brock's made sure of these things before they committed the CT series to production.
What I did to make sure the CT-DUALs would permit me to put PLX cases on was go to brock's site, and get a side view of a ZX14 with CT-DUALS on it, and measure a straight line from the top of the muffler back, parallel to the top of the muffler. Then I compared it to a picture of a ZX14 with the PLX cases on it.
LOL, maybe someone will answer who used a slip-ons with the PLX racks / side cases.
I wish I could have put the full size rack on, and used bigger side cases, but the amount of fabrication I'd have had to do to clear the CT-DUAL mufflers was just too much to bother with. But you can never have enough luggage space. I also wish I had gotten the E55 top case instead of the E52, but what the heck... right ?
Hope somebody that used slip-ons with them sees this. Consider this a bump.