Real interesting thread, don't know how I overlooked this weeks ago. I did this mod about 6 months ago and had it listed on my custom tune sheet when I got my 87 performance tune. My setup is almost identical to Jack's second version except with flat black paint and the painted hose clamp. I also am using an AEM DryFlow panel filter which makes quite a difference over the stock panel filter acording to my "seat of the pants" dyno. I have confirmed this when I removed the AEM to wash it and put the stock filter in until the AEM dried. One other difference I did was to plug the factory baffles from the inside instead of removing them. In theory this should give a smoother air flow over the stock setup (Jack your thoughts?). It does give it a little more "throat" in sound when you open it up. All said and done I've spent less than $5 on parts and about 1 hour in time on the original setup with a little tweaking later. Was definitely worth the effort in my opinion and alot of fun to do! 
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2005 F150 XLT SuperCab 5.4L V8 4x4, 3.73 LS Rear end, Auto Spring 2" Leveling Kit, Gryphon tuner custom 87 Performance tune, AEM Panel Air filter with modified stock intake, 14" Magnaflow muffler
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Wed, February 11th, 2009, 10:55 PM
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