K, guys. I have noticed my dad looking at some Superchargers and etc. The warrantee on this 05 GT runs out in about 3 years and I was wondering what current system looks like it is the best? I saw a mag that had whipple,centrifical, and twin turbo set up. wich of these three would be recomended for someone looking for about 450 WHP to start with and go up in power if desired with minimal mods if any after the 450. I like the whipple and twin's may be way expensive. Any price numbers on the TT set up? The set up I saw was the Ultimate racing 05 mustang GT twin turbo kit. " Ultimate says it targeted the 450 Rear-wheel horsepower mark with 7 lbs of boost and the kit is said to have made 356 hp with 3 pounds of boost. The Paxon Supercharger I see is $5,499.95for the high-output. The Vortech Supercharger $5,259.95 for the high-output. The Whipple which is at a $5,295 list price claims to be capable of boosting the three valve 4.6L engine to 450-475 hp. what do you guys think? Keep in mind that the only time I plan on running this car at WOT is at the track. No street playin for me. any advice is appreciated