Obviously you will need a custom tune, but JLT has a cold air intake/SCT X4 tuner package for $749. The SCT X4 comes with a custom tune loaded into it, and this package makes for a plug-and-play ...

SCT still carries the X4, Livewire, and iTSX, as well. SCT and Bully Dog are both focused on improving performance via both the muscle car, import performance, and truck and off-road markets.