ARB Airlocker Dana44 30Spl 3.92&Up S/N. Suspension>Bushing Kits The Pro Series differential covers

The Pro Series differential covers include a oil level sight glass

and the stock fuel filter

and an under frame design

oiled OE replacement performance filter will outflow the stock filter for improved horsepower and torque

2013 Audi TT Quattro S

ARB Airlocker Dana44 30Spl 3.92&Up S/N. Suspension>Bushing Kits The Pro Series differential coversThe world's premier traction aid, an ARB Air Locker(TM) keep you moving in all conditions. With the flick of the switch an Air Locker gives instant lock at any moment and its super strong design allows activation at any speed allowing you to tackle the toughest terrain. The advantage of the Air Locker lies in the pneumatically operated locking system inside the differential. When activated, the Air Locker prevents the internal differential gears from