I'm new to diesels and I have a 2004 LLY. The truck already has a LBZ Mouthpiece, S&B Intake, Rebuilt Transmission, Trans-Go Shift Kit, EFI Live, DSP5 Switch, 4" straight pipe, EGR Delete, PPE Rail Plug, Ported Fuel Rail Fittings, and a Batmowheel.
So far i have purchased a PPE Downpipe, Fass...