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SCT X3 Mustang Tuner w/ Lifetime Steeda Certified Tunes

SCT X3 Mustang Tuner w/ Lifetime Steeda Certified Tunes
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SCT X3 Mustang Tuner
388-3000 - SCT X3 Mustang Tuner - $379.89
Steeda Billet OBD II Port Cover
This OBD II port cover will ward-off any dealers or shops from reprogramming your Mustang, which would over write your aftermarket performance tune and render your expensive tuner useless. Click here, to see this item.
PCM Code For Custom Tune
We will need your Mustangs PCM code to create your custom tune. If you do not provide it here, we will contact you after you place your order to get it.
Gear Ratio
Supercharger Pulley (If Factory Supercharged)
Throttle Body
Fuel Octane
Intended Use
Other Modifications
Our Price: $379.89
Market Price: $417.88
You Save: $37.99
  Installation Info
Time to Install
About 15 Minutes
Level of Difficulty
Tools Needed
No Tools
  Product Description
The Xcalibrator 3 flash tuner by SCT comes pre-programmed but also functions as a custom tuner allowing up to 10 custom tunes for vehicles not supported by its pre-programmed files or for custom applications.

The Xcalibrator 3 features a much larger backlight display making it easier to display and read. This makes the built in data logging and real time vehicle monitoring capabality more convenient.

Unlike the previous Xcalibrator, this device features an analog input port to support any 0 to 5 volt device such as a wideband 02 sensor, EGT sensor, or 2/3 bar map sensors (not included).

The Xcalibrator 3 like its predecessor also has adjustable end user parameters and diagnostic capability allowing you to read and clear DTC trouble codes. The best part is you get all these extra features for the same price as previous Xcalibrator models!

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
  • Huge backlit screen!
  • Analog input for popular 0-5 volt gauges!
  • Holds up to 10 custom tunes with end user adjustable parameters!
  • Proven SCT tuning capability
  • Improved horsepower and torque!
“I wanted to follow up and let you know I took my car in for some custom tuning and the tune that you guys sent along with the tuner was quote "Perfect"! Something that rarely or never happens with a out of the box tune. Bottom line, you guys saved me $500 in custom dyno tuning and that rocks! I am definitely a believer in Steeda and will be signing your praises.”

K. Gauthier - Washington

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  Product Fitment
 This product fits the following vehicles
  • 2014 Mustang GT Automatic
  • 2014 Mustang GT Manual
  • 2014 Mustang GT500 Manual
  • 2014 Mustang V6 Automatic
  • 2014 Mustang V6 Manual
  • 2013 Mustang Boss Manual
  • 2013 Mustang GT Automatic
  • 2013 Mustang GT Manual
  • 2013 Mustang GT500 Manual
  • 2013 Mustang V6 Automatic
  • 2013 Mustang V6 Manual
  • 2012 Mustang Boss Manual
  • 2012 Mustang GT Automatic
  • 2012 Mustang GT Manual
  • 2012 Mustang GT500 Manual
  • 2012 Mustang V6 Automatic
  • 2012 Mustang V6 Manual
  • 2011 Mustang GT Automatic
  • 2011 Mustang GT Manual
  • 2011 Mustang GT500 Manual
  • 2011 Mustang V6 Automatic
  • 2011 Mustang V6 Manual
  • 2010 Mustang GT Automatic
  • 2010 Mustang GT Manual
  • 2010 Mustang GT500 Manual
  • 2010 Mustang V6 Automatic
  • 2010 Mustang V6 Manual
  • 2009 Mustang Bullitt Manual
  • 2009 Mustang GT Automatic
  • 2009 Mustang GT Manual
  • 2009 Mustang GT500 Manual
  • 2009 Mustang V6 Automatic
  • 2009 Mustang V6 Manual
  • 2008 Mustang Bullitt Manual
  • 2008 Mustang GT Automatic
  • 2008 Mustang GT Manual
  • 2008 Mustang GT500 Manual
  • 2008 Mustang V6 Automatic
  • 2008 Mustang V6 Manual
  • 2007 Mustang GT Automatic
  • 2007 Mustang GT Manual
  • 2007 Mustang GT500 Manual
  • 2007 Mustang V6 Automatic
  • 2007 Mustang V6 Manual
  • 2006 Mustang GT Automatic
  • 2006 Mustang GT Manual
  • 2006 Mustang V6 Automatic
  • 2006 Mustang V6 Manual
  • 2005 Mustang GT Automatic
  • 2005 Mustang GT Manual
  • 2005 Mustang V6 Automatic
  • 2005 Mustang V6 Manual
  • 2004 Mustang Cobra Manual
  • 2004 Mustang GT Automatic
  • 2004 Mustang GT Manual
  • 2004 Mustang Mach 1 Automatic
  • 2004 Mustang Mach 1 Manual
  • 2004 Mustang V6 Automatic
  • 2004 Mustang V6 Manual
  • 2003 Mustang Cobra Manual
  • 2003 Mustang GT Automatic
  • 2003 Mustang GT Manual
  • 2003 Mustang Mach 1 Automatic
  • 2003 Mustang Mach 1 Manual
  • 2003 Mustang V6 Automatic
  • 2003 Mustang V6 Manual
  • 2002 Mustang Bullitt Manual
  • 2002 Mustang GT Automatic
  • 2002 Mustang GT Manual
  • 2002 Mustang V6 Automatic
  • 2002 Mustang V6 Manual
  • 2001 Mustang Cobra Manual
  • 2001 Mustang GT Automatic
  • 2001 Mustang GT Manual
  • 2001 Mustang V6 Automatic
  • 2001 Mustang V6 Manual
  • 2000 Mustang Cobra R Manual
  • 2000 Mustang GT Automatic
  • 2000 Mustang GT Manual
  • 2000 Mustang V6 Automatic
  • 2000 Mustang V6 Manual
  • 1999 Mustang Cobra Manual
  • 1999 Mustang GT Automatic
  • 1999 Mustang GT Manual
  • 1999 Mustang V6 Automatic
  • 1999 Mustang V6 Manual
  • 1998 Mustang Cobra Manual
  • 1998 Mustang GT Automatic
  • 1998 Mustang GT Manual
  • 1998 Mustang V6 Automatic
  • 1998 Mustang V6 Manual
  • 1997 Mustang Cobra Manual
  • 1997 Mustang GT Automatic
  • 1997 Mustang GT Manual
  • 1997 Mustang V6 Automatic
  • 1997 Mustang V6 Manual
  • 1996 Mustang Cobra Manual
  • 1996 Mustang GT Automatic
  • 1996 Mustang GT Manual
  • 1996 Mustang V6 Automatic
  • 1996 Mustang V6 Manual
  Product Reviews
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Reviewed by jocaant
12/27/2010 - 03:15:50 PM
SCT tuner

I purchased the SCT tuner for my 2010 4.0L Mustang, I felt a good increase in power and torque however I thought that I would get a higher top end. Prior to tuner 114mph was its limit with tuner I had a hard time touching 120mph. and idle rev limiter is still operational. I give it 4 stars
Reviewed by joey88
07/24/2011 - 12:27:53 PM
Great service and tuning

I have to say a huge thanks to steeda for sending me multiple tunes as i kept purchasing and installing items from here. These tunes are very good and the customer service is EXCELLENT. I wouldnt use any other tuner for my car.
Reviewed by scorrello
07/20/2011 - 12:51:59 PM
Great Product

Very simple to use when following the instructions. On 05-10 Mustang GTs it provides a very real and very noticeable increase in power when coupled with a cold air intake- gains of 20-30 wheel horsepower can be expected. Throttle response will also be dramatically improved.

Will make a very noticeable difference on automatic transmission equipped vehicles also- firmer, higher shift points and much more positive shift engagement.

This product is somewhat limited in what it can and can't change parameter wise when compared to full on tuning software suites, but for your average weekend racer, it's just what the doctor ordered.
Reviewed by lukemccall99
lukemccall99 bought "SCT X3 Mustang Tuner w/ Lifetime Steeda Certified Tunes" on our website
05/03/2012 - 10:27:33 PM
Awesome product and service

Got this for my 2011 5.0 along with the cammed idle tune, and everything runs flawlessly. Customer service was amazing and they got this to me promptly. I'm very impressed with my tunes and with Steeda. I've gotten my short-throw from them, tuner, and next I'll be getting a cai from them. I love Steeda!
Reviewed by csulb
01/06/2014 - 03:05:45 PM
How good is a Steeda tune?

How good is a Steeda Tune? I have a little over 160,000 miles on my normally aspirated ’06 Mustang GT with LT headers, Steeda Underdrive Pulleys and 3.55:1 gears. Getting comfortable after a few laps on my new Steeda suspension and Nitto tires, I began not only keeping up with but catching up with a few of my club members newer and higher rated horsepower cars – a 2014 Mustang GT and a 2012 Mustang BOSS 302. I can turn with the Shelby’s – just don’t have the supercharger power to keep up on the straights…
And off-the-line - I pulled alongside a more powerful Dodge 5.7 HEMI Magnum. Didn’t think he was going to take off – so he got the jump on me. I caught him and began to overtake. Next light I was ready – won off the line and continued to pull away. An Audi S4 early one morning got the jump on me. Again! The driver didn’t look like he was the type to race, but he was in an “S” series Audi. I was behind but stayed with him. The next light I spun my tires. The third light I took him. The driver had that look like he thought he should be able to take any ’05-’09 Mustang GT – he didn’t know I had a Steeda Tune. Remember, I have 160,000+ miles. Still waiting to pull alongside a Camaro…