3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
2006 and up have the same setup as the 6.1, an integrated dual coil. As mentioned, the stock setup fires the cylinder the coil is in at the same time firing across on another cylinder's partial exhaust stroke. I put the shorties on and its like the 06 and up - fires both plugs same cylinder. I'm not saying there's any measurable power difference, but you can feel it pull harder than before.
Your question was firing order. Its 18436572.
Actually, his subject was firing order, his actual question is "if booth plugs fire at the same time".