I have the Magnaflow 11256 on my 2008 4.7, i love the sound. Its loud enough to know something is defiantly going on but not too obnoxious while driving. I still have the resonator on the back, am thinking about erasing that to let it breath just a little better. I got mine from amazon, paid a fraction of the price compared to the kit, then just had it welded at a local shop. Saved almost 400 bucks for basically the same system. I also have a k&n CAI and whenever superchips send me back my tune ill have that going as well.
2008 4.7 Limited | K&N CAI | Magnaflow exhaust | Superchips | tinted tails | painted headlights | 55w 10k HI & LO and fog HID | shorty antenna | Alpine nav unit | jl w6's | power acoustic amps | infinity perfect 6.1 | LED interior & exterior | security strobe| debadged | 5% tint