All depends. Ones ok w/ everything, the next one down the street will void you on the spot w/ what I got - the Smarty, turbo, and FASS. It suck azz big time. So I guess the advice I got is ask before you do anything. Get at least 3 service shops in your area.
__________________
06 QCSB Capped Rail Airaid Baffle Delete MagHytec Transmission Pan Aeroturbine Muffler Fluidampr Superchips Pyro/Boost & Autometer Ultra Lite Digital Oil Pressure & Transmission Temp Gauges ATS 5 Star TC Flexpiped CAT DDR Enabled Royal Purpled EZ Down Weston Nerf Bars Spray In Bed Liner Valley Gooseneck Hitch
http://www.myspace.com/montanadodge