the directions are in the box with the guages. be very gental with the water guage wire if you bend it to hard and it gets pinched off it will not work. when you route the oil line make sure that it is protected from every thing. if it gets even a pin hole puncture it will drain almost all of the oil in your engine in about 30 seconds flat. and 4 quarts of oil on your floor board really sucks.

they are good guages just be smart when you route all the wires through the fire wall. i would have pictures but i have only used them on mt SB'ed toyotas and i have gotten rid of all of those trucks, faith in the 22re runs strong now a days.