Nope, never been used. Was going to put on my old crx but it ended up getting stolen, so I parted out everything I have. I also have the wireless controller (24 button remote) for an airbag setup if anyone is interested, asking $125 for it. Cylinders do not come with the compressors, tanks or hoses, but I do have an L 1/2 fittings installed on them already.