You are correct 7mgteu plug directly into a Gen 3. But why would you do it. If you are running a standard computer it will run toooo rich at anything over 11 psi. You surrent injectors are 245cc against the 7m 430cc. Not sure pumping more fule in when the motor is at 10.5 already or so will help. If you plan to go after market and fit a better turbo I would highly recommend the 7mgteu injectors.