I installed my Flowtech muffler in my garage. Install time was 45 minutes. For a DIY install, you would need a pipe cutter (or sawzall), 2 muffler clamps, and a 2.5 sectio of exhaust pipe that has an inlet/outlet, and have acces to a welder. If interested, I could post instructions. For the muffler, just have to use the offset inlet/center outlet 2.5.
'06 White Sport:4x4,4.7L, K&N CAI,Flowtech Terminator muffler,Flashpaq,OME HD lift,RRO UCA,20" GF-X wheels 275/55-20 Nitto Terra Grappler tires,rear grab handles,tinted tails,front hooks.