2005-2014 Mustang S197 Rear Air Suspension Kit (ALF76515)Lower your Ford Mustang and raise your standards to Air Lift Performance. The rear kit features progressive rate sleeve style air springs and high performance monotube shocks. With 32 levels of damping adjustability and threaded lower mounts, the shocks allow for a wide range of flexibility. Features Drop height of up to 4. 9 (124mm) below stock 32 level damping adjustment Sleeve style progressive rate air springs High performance monotube shocks