Well, so far I installed the factory clearance/cab lights and got my Magnaflow done this afternoon. I have a Flashpaq 2865 on order along with a Volant CAI with the PowerCore 100K mi filter option.
The cab lights install went very smooth as did the Magnaflow except the instructions for the exhaust say to re-use the factory flange bolts and nuts. Well, at least for the 2009 like mine you can't re-use the studs because they are to short and too small! Luckily, I have a good stock of stainless fasteners in my garage and just used the right size bolt & nut for the job.
The sound is so much better than stock it's not even funny!! I can't wait till the tuner and CAI get here to see how much it all helps.........