This F-150 supercharger kit is capable of delivering over 700 horsepower to 2011-2014 Ford F-150's with the 5.0L, 4-valve V8 powertrain system. The ROUSH 2011-2014 F-150 Supercharger Tuner Kit is part of the TVS (Twin Vortices Series) family line of superchargers developed by ROUSH that have raised the bar for performance and reliability. This is the same line that has been used and proven for years in ROUSH-built vehicles.This 2011-2014 F-150 5.0L Supercharger Tuner Kit features a bolt-on pulley which can easily be switched out for another pulley size.This kit is protected by ROUSH's standard parts and accessories warranty, which is for 90-days from retail purchase date on ROUSH components only not including labor.