$4k seems to be high for an Escort 9500CI, must have front and back jammers. I've heard horror stories about cops ripping custom installs out of the car when the drivers get caught driving exceedingly fast. Installers do excellent jobs in making the installations hard to notice, but highway cops are dealing with these everyday and can keep up with the smarts of the installers. I bet many of them are reading 6speedonline just to get an idea about custom installs
I am still using an Escort 9500IX, was really impressed with it until I got nailed with it running, got my relatively new vehicle (thanks goodness not my Porsche) impounded for a week, an experience that cost me close to $2k, so has slowed down quite a bit.
now my wife is complainig that I am not driving aggressive enough (wait, she has more speeding tickets than me)