For the A/F gauge it depends if its wide band or narrow band. If its narrow band then just wire it into your factory upstream O2 sensor. I believe its the white wire. If its a wide band then you need a wide band O2 sensor and weld in an extra bung before your cat. For the boost gauge it depends if its mechanical or electric. If its mechanical then there should be a tube fitting on the back, you need to go to your local parts store and buy a vacuum/boost gauge install kit, which is basically a nylon or copper tube with some fittings. If you get the nylon kit then be carefull it kinks very easy and once it kinks that section is junk.