I currently have just an interior kit, can I add on an Underbody?

Please note, not all interior kits are considered an ‘add-on’ which could be attached to an underbody kit. If you started out with an interior kit only, this control box is different from the underbody control boxes.  The underbody kit will need to be purchased as a whole.  If your interior tubes are capable of connecting to the control box, you may need to purchase additional accessories. For additional assistance, please contact us!