Product details:

You care about your car, and want to it perform at the top of its game. Now, you'll be monitoring your engine's air/fuel ratio with ease. Thanks to this kit, you'll be given all the data you need right on your dashboard whenever you need it. Plus, this kit comes with everything you'll need! It includes the digital gauge, which is dimmable and can be illuminated in either red or blue light, an O2 sensor, weld-in bung, wiring harness, and decals. Take the headache out of engine tuning with this AFR kit.