installation is pretty much straight forward... this is how i did it for my 96.
theres 5 screws holding in the dash. two by the clock, one by the headlight switch and two above the guages. after that is taking off, take the housing apart. i did this by prying it open with a screwdriver (make sure not to break the prongs) im assuming, u got the electrical pieces with the svt faces too so.. i believe there are screws holding in the gauges so unscrew those. the guages should unplug easily. after that, plug in the new ones. some people have had some problems with the fuel and oil temp guage reading backwards, if it does i suggest just taking the faces off your old gauges and sticking the svt ones on your stock electrical units. if u do indeed have to take off the svt faces, there should be enough sticky residue for them to stick back to your stock gauges. after that, adjust the needles properly. i suggest driving next to someone around 50-60 mph and replacing the speedo. last step is just reassembling.