Hey guys, I recently installed a Blitz DTT (the one with built in boost gauge). My car came with the Mitsubishi factory gauge kit so when I did the install I just tapped into the vacuum line going to the factory gauge. Now I’m not sure where the factory taps their vacuum line into but I was wondering since it’s spliced with the other gauge if it will still be accurate. It looks like its reading about right but I just figured I would ask you guys incase. Thanks in advance!

P.S. I couldn’t find anything in a search so please no flames.