which is better and what do i need for my set up??
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08 2500 6.7l Quadcab SB|68RFE|HBS 2.5" Lvl|5"TBE to 7" Black Miter|EGR & Cooler Delete|K&N CAI|SMARTY|Shibby 3.5" Boost Tube|18" Rockstars w/35" Mudd Grapplers|BD Steering Brace|Edge Insight|Debadged|LED tails|