I had a Magnaflow CB on my 04 GMC and loved it. So when the time came put it on my Ram as well. I have had no issued with it and it installed quickly. I know you want to keep the factory tips but the 5 inchers that come with the CB look sick!!
2012 1500 Laramie CC 4x4/Hemi/Deep Cherry Red Crystal, Bright Silver Metallic
MODS: Volant CAI, 20% Tint All Around, Diablo Trinity w/Hemifever, Magnaflow Cat-Back, Daystar 2.5" Lift, BP Catch-Can, LuVerne 3" Polished SS Tube Steps, Magnaflow Y-Pipe, Fuel Throttle Chrome 20x9 +1 with Nitto Terra Grapplers 295/60R20, 85mm Ported Throttle Body