There are a few things you can do to avoid welding when straight piping a car. The first is to use a welding torch with a low heat output. This will help avoid any heat damage to the metal. The second is to use a welder with a high-temp output. This will help prevent the metal from melting too quickly and causing problems down the road. Finally, be sure that you have enough wire and flux to cover the entire area you are going to weld.
