I bought an SCT X4 tuner from a local JLT Performance store, I don't know if it's the heat, but it just feels a bit underwhelming. From power output alone, I can't really tell a difference with the 93 octane tune, and I've always ran 93 octane, stock. The only difference I can tell for sure is the shift firmness, the 1st to 2nd shifts pins me into the seat, but that's about it. So far I don't think this is worth the $400, and I should've ordered it online from AM or other reputable online stores that can load custom tuning on it from the get go. If I take it back I'm out $100 after restocking fees.

 

Definitely should've bought custom tunes with it, since they're included with AM, Steeda, etc. Now it'll cost you more than returning the device.

 

Get a custom tune for sure! Canned tunes are mild...

 

Well, for $100 you can get an MPT custom tune or $150 for tunes for life at AM and Steeda. Ya live an ya learn, but not all's lost. You've got the tuner, so I would'nt pay them $100 to restock it. Use that money to get a custom tune and move on. We've all made mistakes, but it's not the end of the world. Let us know what you end up doing

 

Yep just add some tunes into the tuner you have already.

 

I love my Steeda tune.

It's worth noting that a tune on the V6 isn't going to make a huge difference power wise. It's a bit noticeable (especially at lower RPMs), but where it really counts is throttle response, and in the case of autos how it shifts.

 

^^This.
Canned tunes =

 

I talked with someone earlier today at a reputable shop about custom non-dyno tunes. He may be able to hook me up with a tune much like how BAMA, MPT, Steeda etc, does their stuff. AFAIK, this place does a lot of work on Mustangs. I saw they had a 2013 GT500 on a lift with the engine sitting under it, was told the owner had a goal with that car to put down 1200hp.

 

This is going to be unpopular with some but dont get a Bama tune. My new Bama tunes for my 3.7 suck...I think I actually lost power when I installed my shorty headers and new tune

Very, very disappointing.

Matthew