just a quick question about chips
 

I was playing around on eBay and found this ___________________http://www.ebay.com/itm/90-12-FORD-F-SERIES-F-150-F-250-ADVANCED-PERFORMANCE-CHIP-TUNING-MODULE-HP-TQ-/251168181232?pt=Motors_Car_Truck_Parts_Accessories &fits=Year%3A2005%7CMake%3AFord%7CModel%3AF-150%7CSubmodel%3ALariat%7CEngine+-+Liter_Display%3A5.4L&hash=item3a7aca4bf0&vxp=mtr_ _________

And I was wondering if anyone has ever heard of or used one if these. Thank you

Eh, I would get a quality tuner like a SCT or Edge. They have excellent support and lots of people that can customize tunes for your truck.