Improves Handling. Improve the ride and handling of your S197 Mustang with a Tokico D-Spec Adjustable Strut & Shock kit. These Tokico Shocks and Struts change both rebound and compression damping simultaneously for a greatly improved ride quality. Adjustable. Tokico's D-Spec Adjustable Struts and Shocks are the result of sophisticated piston and valving design. Also, their damping specific adjustable struts and shocks utilize a unique variable-aperture bypass, which is controlled by an adjustable slide valve. The variable tuning range makes it possible to use D-Spec for street, auto-cross, drag racing, or even road racing. Kit Contains. This 2005-2010 Tokico-Spec Adjustable Strut & Shock KIT includes: Two Tokico D-Spec Adjustable Front Struts, Two Tokico D-Spec Adjustable Rear Shocks, and One Tokico D Spec Adjuster Knob. Application. This Tokico D-Spec Adjustable Strut & Shock Kit is designed to fit on the 2005-2010 V6, GT and Shelby GT500 Mustangs.