i have this kit on my car and it makes a pretty impressive difference, especially considering the price. the only thing i've changed is the springs. i put in a set of eibach's last may cause i wanted a bigger dropIt's a pretty decent begginers suspension upgrade for really cheap. It's the same suspension that comes on the bullitt. It's also the same on the Mach only it comes with front and rear sway bars. FYI, the Bullitt out-handles the termie.
I would buy from here Bullitt Mustang Suspension Kit - 94-04 Mustangs - StangSuspension.com