For those that are questioning the need for upgraded injectors for the 3.5 EB this is an excerpt from the article in the link further below .
Sounds like pretty convincing data to me .
Any tuner will tell you that the more data they have on the parts in a particular setup, the better than can tune a car. Deatschwerks spent about a year developing and verifying injector calibration summaries for their entire modern muscle car product line. "When you purchase a set of our injectors, what comes with them–which, in many cases, tuners find more valuable–is the tuning data," says Deatsch.
"All of our modern muscle injectors have plug-and-play tuning data to get set up in your ECU...You can go right to our website, go to the Resources tab, find the GM or Ford calibrations, pick your injector part number, download an Excel spreadsheet, and the copy and paste the injector data you need for tuning right into the ECU tables."
http://www.streetlegaltv.com/features/pri-coverage/pri-2013-deatschwerks-new-gdi-injectors-and-calibration-summaries/These injectors along with a modified fuel pump , or maybe unlocking the FRP through tuning as hinted at by FoMoCoSho is what is going to make things happen .