i have an 06 gt pretty much stock. i'm really interested in the jlt/sct x3 combo package. right now i'm just looking to give my gt a little more power. i'm not expecting supercharger like results, but will this tune wake my car up on a noticeable level? i would only be running the 87 octane tune because it's pretty much my daily driver. like would i be looking at 20hp at least? if you would buy the brenspeed sct x3 87 tune and the jlt combo press yes. if not, press no.