"Coal rolling" now a subculture in CO.

[brutal]

EGR delete and you're good to go with the 6.0L. It's just a matter of whether or not you lost a motor before the delete.



Yup, 2004.5 when they started rolling out the 325/555 H.O. version. I dug through a bunch of official EFI Live posts and updates, and apparently they'd tried to tackle the project, but the ECM's architecture is too difficult for their tech team. Shame, considering Smarty and every other box tuner could write software & ROMs for it. They basically said it wasn't financially viable to spend anymore time on the 04s and 05s, which I find very hard to believe.

I believe early 2004 H.O. Option was 325/555.

Official 2004.5 mid model year trucks are 325/610 in stock factory form. I own one and that's what's on the sticker.



I believe this list to be (mostly) correct for all auto trans 2500/3500 pickups:

2003–2004 SO 5.9 L -Cummins diesel I6 250 hp/460 lbf·ft
2003–2004 SO California Emissions 5.9 L -Cummins diesel I6 235 hp /460 lbf·ft
2003–2004 HO 5.9 L -Cummins diesel I6 305 hp / 555 lbf·ft
2004.5–2007 5.9 L -Cummins diesel I6 325 hp / 610 lbf·ft

Wiki also shows this:

2002-2003 SO 5.9 L (360 cu in) Cummins diesel I6 250 hp (190 kW) 460 lb·ft (620 N·m)
2002–2003 SO California Emissions 5.9 L (360 cu in) Cummins diesel I6 235 hp (175 kW) 460 lb·ft (620 N·m)
2002-2003 HO 5.9 L (360 cu in) Cummins diesel I6 305 hp (227 kW) 555 lb·ft (752 N·m)
2004-2008 5.9 L (360 cu in) Cummins diesel I6 325 hp (242 kW) 610 lb·ft (830 N·m)
2007-2009 6.7 L (408 cu in) Cummins diesel I6 350 hp (260 kW) 650 lb·ft (880 N·m)


2010–2012 6.7 L (408 cu in)Cummins diesel I6 (6-Speed Manual/Automatic) 350 hp (260 kW) 650 lb·ft (880 N·m)
2011.5–2012 6.7 L (408 cu in)Cummins diesel I6 (High Output 6-Speed Automatic) 350 hp (260 kW) 800 lb·ft (1,100 N·m)
2013– 6.7 L (408 cu in)Cummins diesel I6 (6-Speed Manual) 350 hp (260 kW) 660 lb·ft (890 N·m)
2013– 6.7 L (408 cu in)Cummins diesel I6 (68RFE 6-Speed Automatic) 370 hp (280 kW) 800 lb·ft (1,100 N·m)
2013–2014 6.7 L (408 cu in)Cummins diesel I6 (Aisin ASC69RC Automatic) 385 hp (287 kW) 850 lb·ft (1,150 N·m)
2014– 6.4 L (392 cu in) Hemi V8 410 hp (310 kW) 429 lb·ft (582 N·m)
2015– 6.7 L (408 cu in)Cummins diesel I6 (Aisin ASC69RC Automatic) 385 hp (287 kW) 865 lb·ft (1,173 N·m)
2016– 6.7 L (408 cu in)Cummins diesel I6 (Aisin ASC69RC Automatic) 385 hp (287 kW) 900 lb·ft (1,200 N·m)