Its zero-offset butterfly valve is equally exposed to exhaust drive pressure on both valve halves

Adjustable lock-stopper

so it doesn't attract any unwanted attention

you can benefit from optional "C6 Rack Offset Spacer Kit" that will allow you to achieve even bigger steering angle on C6 chassis (not needed on C5) and improves the Ackermann curve

Mil SPec Proprietary Diaphragm

JR Wheels SL04 19x8 ET20-40 5H BLANK Matt Gun Metal CB: 72,6 Spacers Its zero-offset butterfly valve isPCD: 5x100, 5x105, 5x108, 5x110, 5x112, 5x114. 3, 5x115, 5x118, 5x120 ET: 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40