Okay, I am looking at getting a tuner for my mustang. I just got the car, but the first upgrades will be a cat-back, Cold Air Intake, and then 4:10 gears. I know when you mess with the gears, you need to retune. What is the better tuner out there, is it the SCT SF3 Power Flash for the Mustang, or the DiabloSport Predator Tuner for the Mustang?

Eventually, I will be changing the TB and Intake Manifold as well as doing a full header back exhaust before I really get into the engine. Any advice would be appreciated, also, if there is another better tuner out there, please let me know, these are just the two I see advertised in all the mags. Thanks.

 

The best way to use a tuner is with the car on a dyno. Most dyno shops prefer a specific brand of tuner so, go find a shop you like & ask them which tuner to get.

 

The SCT tuners are light years better than the Diablosport ones.

What I would do is buy a used, but unlocked Xcalibrator 2 or 3. Then order a mail-tune from Justin at VMPTuning.com

After everything it should cost you around $275-$300, but it's well worth it.