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I have a few questions...will it smog with a supercharger installed? Also I wonder how the fuel economy would be when towing a vehicle with the extra hp?
fuel economy has actually increased when i dont boost. (which is hard ) avg around 18 on a 40 mile trip traveling no faster than 55mph average. not sure on towing. the limited is rated at 7500 lbs so i cant tow much anyways. (guess because of the suspension. not really sure)
I'm also curious to know if the Roush supercharger still doesn't void your warranty as long as you have a Ford dealer do the install??? I know that's the way it was when i wanted one for my 2007 F150 about 4 years ago.