Ok guys I keep hearing that you dont want to run a high po tuner on a 6.0 unless you stud the heads, delete the egr, replace the factory fuel pump, and bla bla bla. I've seen that Sinister makes new banjo bolts for the 6.0s, and Im thinking about taking mine out, drilling the holes bigger and removing check vavles. Question 1 is would me modifying mine be any different than buying the new ones? And another thing is can I add a regulated fuel return from a company like Alligator performance and keep the factory lift pump and run a mild tune or will my fuel pressure drop below 60 psi and ruin the injectors? I've looked at the replacement pumps and most of them flow more than stock but only up to 15 psi? WHAT DO I NEED? What do I need to do to keep this thing alive? I love my 6.0 and am TOTALY impressed with the power. I just like to play with my toys any make the duramax crowd look sad.