Guys I am looking to upgrade my injectors & add more fuel to my D-series. I plan to turbo it so I am looking for some help. What is da next size above stock or something maybe a little bigger??? Any help or suggestions will be great

 

Your stock injectors are fine. You have no need to upgrade N/A D-Series injectors.

Once you boost your car, you'll want to use anywhere from a 450cc-1000cc injector depending on your setup and goals.