The 03 Is Not Set Up For Towing, But Tried It Anyway, Towed A 2003 Superduty Extended Cab Long Bed Dually 4x4 Powerstroke On A 22 Ft Flatbed, The 03 Dodge Has 63 Litre Bfi Injectors, Twins,meth, Bblah Blah Blah, Other Than Smoking Like A Sled Puller When Trying To Excelerate Down The On Ramp, Towing At 80 Mph, Egts Were A Steady 1000 Deg While Boost Was About 28-30 Psi, All Boxes Off, Tnt On Level 3 No Timing, Rail Pressure At 16-17000 Psi Cruising On Flat Ground With 10ply 37-20s No Surging Or Exh Temp Issues At All, I Stayed Off The Go Pedal So I Wouldnt Break Anything, As For Cruising Speed Smoke, There Was Barely A Haze... , The Best Part Was Finally Getting To Tow The Ford That Always Tows Me Home:d