If you already have rear air, and want to add front air WITHOUT A TANK, this kit will add on to your existing rear kit and allow you to run 2 compressors through the DIRTY AIR 4 valve manifold. This lets you run both pumps to fill the front, and both pumps to fill the rear, making it twice as fast as running just one pump. This system is not normally recommended, most of the time adding a basic front system onto a basic rear system is just as effective, easier to install, and costs less.
Front parts will not work on inverted front ends like new 2023 CVO models