I would really like to know that between the 2 tuners, SCT Performance X4/SF4 Power Flash Tuner or SCT Performance BDX Tuner , Which one would be the best choice for my vehicle?
I currently have Axle Back Muffler Deletes, & an AIRAID SynthaMax Cold Air Intake. My future upgrades will include the Ford Performance 62mm Cobra Jet Throttle Body, Ford Performance Hit Rod Camshafts, as well as Ford Performance Rocker Arm & Lash kit, MSD 3-Valve Blaster Coil Packs. I am pretty sure that I am...

Best tuner for my 06 Mustang GT?