You can see a list of mods in my signature and I have an allseason EGR delete in the mail and a ECM from duramaxtuner w/ dsp5 will be by the end of the week. My question is where do I go from here? I want the truck to still be able to be used as a daily driver, though I don't use it as mine right now.

Moved to other performance discussion

With EFI Live, lift pump and tranny, the next option is twins IMO. An s475/stock combo should get you into the 600-650 range and youll love the sound and the spool up. Power comes on smooth and strong. I went with Screamin Diesel Performance for my setup. Quality.

x2 on the twins, and i would definately do intercooler. alot of guys skimp on air flow after they have big turbos. an good intercooler in my opinion is just as important as the big turbo.

x3 , twins