Browse Parts →

Hours:  M-F 8-6 EST, Sat Phone Hours 9-1 EST

Fast, Free Shipping*

Mustang Performance Parts

SCT X4 Mustang Tuner w/ Steeda Lifetime Certified Tunes (96-16)

Our Price $399.95
Market Price $459.95  
You save $60.00 (13%)
400 points

Manufacturer:  SCT Tuning

Add to Build List
  • Product Description
  • Installation Info
  • Mustang Fitment

*Over 20+ hp increase with tuning alone*

SCT's X4 tuning device is the latest evolution of the X series of tuning devices from SCT. SCT's X4 features great improvements in design and use. This unit is a smaller, more compact device than the X3 it replaces.

The X4 features a larger, brighter, easy to read color screen with auto dim and user adjustable portrait and landscape modes. The device holds up to 10 custom tunes which can be supplied by SCT custom tuning dealers and also includes pre-loaded strategy files from SCT.

Now with built in Wifi, the device can be connected to any wireless network and will allow you to install any software updates released by SCT right through the device without a PC.

In addition, the X4 offers improved datalogging capabilities right through the device or when used in conjunction with a laptop and SCT's Live Link software.

Note: For custom tuning applications please provide the vehicles 4 digit processor code with your order.

Note: Purchase of this item enrolls you in the Lifetime Tunes Program. To read more about the Lifetime Tunes Program, Click Here.

Product Benefits

  • Larger adjustable screen with landscape and portrait modes
  • Holds up to 10 custom tunes
  • On screen datalogging and monitoring
  • Wireless connectivity

Warning: Not approved for sale in California or states that require a California E.O. #. This part has been designed and is intended for off-road application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations.

Note: Federal and several state and provincial laws prohibit the removal, modification or rendering inoperative of any part that affects emissions or safety on motor vehicles used on public streets or highways. Steeda Autosports assumes no liability for any violations arising out of any federal, state or provincial emissions or safety requirements on motor vehicles arising out of the customer’s modifications and/or use of Steeda products. It is the responsibility of the customer to determine if their modified vehicle complies with applicable laws.

This limited warranty is the only express warranty applicable to Steeda Autosports products. Other rights may arise or vary from state to state in the United States. Steeda is not responsible for any time for which you may lose the use of your vehicle, any inconvenience you might be caused, the loss of your transportation or any part thereof, or any other incidental or consequential damages you may have.

Time to Install
About 15 Minutes
Level of Difficulty
Tools Needed
No Tools
Model Year(s)
2016 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996

Bullitt Cobra Cobra R Mach 1 GT V6 GT500 Boss

Manual Automatic

Product Reviews

Not only does this tuner by SCT give you 20+hp right out of the box, it allows you to feel at ease when ordering future mods since this same tuner can be used in conjunction.

For the price, you can't go wrong with this mod. It's so easy to use and you can load any fuel-type of tune. Makes your car even faster! :)

This is the best mod you can do for your Mustang - the new SCT X4 is sleek and is very easy to use. Gained 30hp just with this mod alone.

Amazing mod - easy to use and shipping was fast!!

Wow this tuner is simple to use and it does exactly as it states - allows you to adjust shift points, revs, a/f ratio, datalogging and more.

SCT has done it again, their X4 tuner lives up to its promise and is really quote easy to use. If you are a beginner when it comes to modding your Mustang, definitely start with a tuner.

One of the best mods I've done for the '13 GT Track Pack. Literally feels like a brand new car - can't wait to take it to the track!

The SCT X4 tuner is a solid product! Really happy with it and the customer service has been great. The main thing I love is the ability to update the firmware over wifi rather than plugging it into the computer each time!

Guys, do yourselves a favor and order this tuner - especially if you're stock and plan on adding other mods in the future. Steeda loads your custom tunes on the tuner before they ship it out to you, so you're ready to go once you get it.

One of the best features over the X3 is the ability to use wifi to update the software - no more fiddling with plugging it into the computer! Thanks Steeda