The high-output complete systems boost stock 2005-2006 vehicles to 462HP.
2005-2008 Complete Systems - Included Components and Features:
Not Smog Legal for Some 2005 Models
These systems are not smog legal in California for 2005 model year vehicles built on or before April 30, 2005. For these particular vehicles, these systems are legal in California only for racing vehicles which may never be used upon a highway (off-road use only).
Installation Instructions Link
California Residents: Proposition 65 Warning