If you are looking for a way to install a Nuna Pipa car seat without the use of a base, then you may be interested in reading this article. In this article, we will be taking you through how to install a Nuna Pipa car seat without using any tools. First, you will need to find the correct size for your car seat. Once you have found the correct size, make sure that it is also compatible with your vehicle. Next, cut the appropriate pieces of wood to fit around your car seat and base. Finally, screw the pieces of wood into place and enjoy your new Nuna Pipa car seat!