I have more information and pics for everyone on the Hellion kit for the '11 GT 5.0
The standard Turbonetics turbo that is included with the base kit comes with a one-year no fault/no hassle warranty. Essentially as long as the oil inlet filter is not removed by the customer and the customer doesn't mess around (i.e. taking it apart themselves) Turbonetics will repair/replace a turbo for one year from date of purchase free of charge.
The upgraded Precision Turbo offers a one-year warranty against manufacturer's defects.
There is also a lifetime warranty on the piping to the original purchaser.
Let me know if you have any questions.
Check out the pics of the kit as seen from under the car. You can check these out at our forums