Isnt rocket science, heck simply put a nail into the end of vacuum line to seal it. These guys use a BB so you can keep the line on the EGR to look right. uh, I actually used a bullet, since I reload, I gots plenty. In the line, not the EGR btw. Cant remember if it was a .224 or a .243. Hornady ballistic tip though, so I can grab the plastic end with pliers and pull it if need be.