If you happen to have an android phone I would wait for "AVID" bluetooth odbII adapter and app from superchips.. *should be cheaper and have more features. Might be worth your while to get an android phone just for that reason.
That said.. SCT Performance - More Power! Less Fuel!
They need to be loaded with stock vehicle-specific-generic tunes.
More specific "custom" mail order tunes by Lasota racing are less generic and include tweaks for aftermarket performance parts..
Its best to have the tunes made specifically for your vehicle on a dyno at a local dealer.
your 3.0L will still be slow but may be a bit more peppy. not worth 500 bones imo.
Only reason I want one is to program my transmission shift points and firmness for larger tires.
Toreador Red 05' FX4
4.0 4x4 A/Tran Ext.Cab Daily Driver. Nomads, BFG M/T's
Alpine 9857, JBL MS-8 DSP, US Acoustics 2x80w & 2x100w, Vifa 1" XT25 Dual Ring Radiator Tweeters 3k+ 24db slope, Dayton Audio 7" RS180-4 Mid-woofers 100Hz-3k 24db slope, 500w rms Kenwood Class-D Mono - JBL 10" GTO1014 Sealed. 100Hz- 12db slope