KW CoilOver Suspension

I don't have it on my car but I have installed it on two of my buddies cars and it is really nice. For th cost differeance though I preffer the Maximum Motorsports stuff. You deffently can't go wrong with the KW though.
 
KW are awesome on a track car. one of my driving instructors had a fox with KW coilovers and Wilwood 6 pot front 4 pot rear brakes with 305 Hoosiers, the car handles awesome. my other instructor has a fox with full MM coilover and has numerous lap records with his fox body.
 
question on coilovers

I have a 99 cobra convertible with saleen kit and rims. I was thinking about adding a coilover kit made by MM. Does anyone think its a good or bad idea. and what kind of mufflers should i go with ? I have bassani x pipe no cats but I also want to not be too loud for cops:D