Re: RBP or MBRP? i want to hear the whistle?
Just go with MBRP's 4" Straight Pipe Kit for $250 to your door. That's super cheap, and much easier than bending/buying your own pipe and trying to fab up something.
Looking for a second 6.4L....
2008 F-250 CCSB King Ranch 6.4L
4" Rough Country Lift, Dual Steering Stabilizers, 20x10" XD Diesels, 35x12.50x20" Mickey Thompson MTZ's, Line-X, 15% Tint, MBRP 4" Cool Duals w/ 6" Tips, S&B Intake, Flo-Pro EGR Delete and Elbow, MBRP CAC Tube