Supercharger

Does anyone know if adding a supercharger to my 03 Denali would void my factory warranty? Thanks...

Yes it will.

not if you have the dealer or an ASE certified technician install a Magnuson Radix supercharger. Theres a dealer here in Phoenix that sells them installed off the showroom floor.

http://www.fullsizechevy.com/forum/showthread.php?s=&threadid=87977