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Discussion Starter #1
The SCT-X4 is a complete dud. I bought it for my 2013 V6 Ford Mustang. According to the manufacturer this is made for my car. It took me two back to back updates from the manufacturer’s website to get my SCT-X4 up to date. The only reason I know the tuner was updated after the second update is I ran a third update, and it told me my SCT-X4 needed no updating. I was not warned after the first update that my SCT-x4 was not up to date. Why did I do a second and third update? I guess I wanted to be sure the SCT-x4 was ready to use before I connected it to my car. I am a very cautious about my Mustang.
The only program available to me was the stock program SCT got from Ford. Under this program there were no gas vehicle specific options listed as the instruction stated I would have. The SCT Tech support had no solution to adding the gas vehicle specific options. In addition, I could not tell the SCT-x4 that I made two simple modification to my car, a cat back exhaust system and a cold air intake. SCT Tech support confirm that I would have to do a custom tune, which I was quoted $650.00 by a local shop. All I was getting from SCT was the stock tune they got from Ford.
I was very excited about the gauge option on the SCT-x4 until it loaded only two gauges. There were no instructions sent to me on how to add or change gauges on the SCT-x4. The SCT website didn’t have this information available either. The SCT Tech support confirm this information was not available to the buyer. He was very helpful showing me how to add and change the gauges. Even though he was helpful, I found it very annoying to have to call tech support for something that should be easy to do on my own. The gauges are identified by name, but the names are abbreviated. The tech had to look up the abbreviations to tell me what the gauge did. (The buyer can’t look this information up.) Once I had the gauges loaded and working, I asked the the SCT tech if the number on one of the gauges was good or bad. He couldn’t answer me, there was total silence. I am not an auto mechanic and the lack of information provided by the manufacturer to the buyer makes these gauge totally useless. An auto mechanic would probably understand how the SCT-x4 gauges works, but I suspect he has far more advanced equipment available to him than the SCT-x4.
Finally, when I ran the diagnostic tool on the SCT-x4 supplied by SCT, it found no issue with my car. I guess that about wraps it up, my Mustang is fine. It’s the SCT-x4 that does nothing SCT claims it does.
If any buyer has any doubts about whether the SCT-x4 will not work on their car, do not load your car’s information onto SCT-x4. Once your information is load to the SCT-x4 the manufacturer will not refund your money, even if the problem is with their SCT-x4. In short, all I got from SCT for my money was a stock tune they received from Ford. Don’t make the same mistake I did and buy this worthless tuner. It does not do what SCT claims and SCT does not support it.
 

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The SCT should only be used as a device to transfer a custom tune and thinking you would get more out of it was a mistake. This is where one needs to ask questions first, not after the fact.

A catback requires no changes made in a tune and your hot air intake may also not require any changes made.
 

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Discussion Starter #3
I was expecting I would probably need a custom tune to gain any improvement in HP and torque, but where are the gas vehicle specific options SCT promised. I received none. I read their instruction sheet on gas vehicle specific option and their was no indication I would get nothing. Can you explain to me why SCT does not provide any information on their gauge package. This is a lack of customer support of their product. I should not have ask SCT to explain how their gauge package works before loading the SCT-x4
 

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I've only gone with "Custom Tunes".
 

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Discussion Starter #5
nice wheels, so far I have added Magnaflow catback competition exhaust system and a K&N cold air intake. I am thinking about adding a Procharger kit. Any recommendation?
 

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I was expecting I would probably need a custom tune to gain any improvement in HP and torque, but where are the gas vehicle specific options SCT promised. I received none. I read their instruction sheet on gas vehicle specific option and their was no indication I would get nothing. Can you explain to me why SCT does not provide any information on their gauge package. This is a lack of customer support of their product. I should not have ask SCT to explain how their gauge package works before loading the SCT-x4
You can get a custom tune right now at MPT, here’s the link:

https://www.morepowertuning.com/mustang-37-v6-tune

They’re having a sale and the $200 tune is $99. This is a super deal with full instructions on how to load the tune with full customer support. MPT is well known and respected on this forum and their tunes are great. I’ve been running my MPT tune for 4 years without problems and very happy. Check it out, I hope this helps.
 

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MPT tune hear as well. Start with that.
 

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I have an SCT-X4 that I will be using to load an MPT tune with once I get all my mods done, so they can load a tune specific to my car with my mods. If you decide to go with any custom tune I would recommend waiting till all your mods are done so as not to have to pay for a new tune after each mod.
 

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MPT tunes here too. If I ever buy a ProCharger it will be bought from MPT. They know what they are doing...……………….
 

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I purchased a SCT X4 when they first came out as a replacement for the X3 in 2011 and have used it on three different cars. I find it relatively easy to use and much much more straight forward than the Diablo Sport Predator tuner i had previously.

While I agree that they should supply instructions with the device or a link so you can download them the device is straight forward enough to quickly figure out.

While the X4 is compatible with most every Ford product built from 1996 that does not mean they they actually have developed tune files for every model. It takes time on a dyno and road testing to develop a tune and SCT only does it for vehicles with sufficient demand.

As others have stated you are best served if you get a tune from a tuner that supports your car. To late for you but it may be helpful to someone else following this thread. If you purchase the X4 from a tuner the cost is the same for the device but they will also include a tune(s) with it for no additional charge or a nominal charge compared to buying it after you already got the X4 some place else.

Having to run the update utility multiple times is a fact in todays world of software based products. My wife got an email recently from Apple expounding on all the new features in watch os6. She ran the updater on her phone and it updated to 5.x, she had to do it again to get 6.0.

The software in your device was current at the time it was manufactured so depending on how long it sat on the shelf will determine how much there is to update. Most of the updates are either adding new tune files for newly supported vehicles or updating existing tune files. The firmware that runs the device is not revised often.

As for the accuracy of the gauge displays the X4 is just a dumb display. The resolution and accuracy of the information displayed is a function of the sensors and calculations by the ECU in the vehicle that it comes from. If you are really interested in monitoring what's going in the engine you would be better served to get a $20 Bluetooth OBDII dongle from Amazon or eBay and down load anyone of the dozens of apps that will work with it to your smart phone or tablet, I like Torque Pro.


Dave
 

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I have an SCT-X4 that I will be using to load an MPT tune with once I get all my mods done, so they can load a tune specific to my car with my mods. If you decide to go with any custom tune I would recommend waiting till all your mods are done so as not to have to pay for a new tune after each mod.
Just an FYI, you can tweak the MPT tune for the first 6 months for free. They realize that this is an emailed custom tune and will need some adjustments to get it dialed in depending on the feedback you give them. After that time period, they charge $20 for any other changes. At least that was how it was done when I got mine. This is not a one shot purchase. So right now you can get a $200 tune for $99 and adjust it as needed. Do the math, that’s an awesome deal with plenty of wiggle room. Give them a call, they’re customer service is awesome.
 

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You could have bought your SCT-X4 with 3 MPT tunes on sale for $399.99 from the MPT web site :)
 

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Just an FYI, you can tweak the MPT tune for the first 6 months for free. They realize that this is an emailed custom tune and will need some adjustments to get it dialed in depending on the feedback you give them. After that time period, they charge $20 for any other changes. At least that was how it was done when I got mine. This is not a one shot purchase. So right now you can get a $200 tune for $99 and adjust it as needed. Do the math, that’s an awesome deal with plenty of wiggle room. Give them a call, they’re customer service is awesome.
Thanx for that info, you caught me assuming and we all know what happens when one assumes. I will still wait till I get my AIRAID MIT, long tube headers and full exhaust done before ordering one of their tunes so I just have to do it once since I am not that literate on the puter and just want to mess with it once.
 

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The SCT should only be used as a device to transfer a custom tune and thinking you would get more out of it was a mistake. This is where one needs to ask questions first, not after the fact.

A catback requires no changes made in a tune and your hot air intake may also not require any changes made.
This is false. I have an SCT X4 that I used on my 2014 Mustang V6 and it had the options to choose an air intake and the octane. I never got a custom tune and the SCT alone made a huge difference in performance when set to 91 or 93 octane and cold air intake.

If you can figure out how to reset your SCT and redo the updates I would try that. I have no idea why it wouldn't show you those options for your Mustang.

Oh and always backup your factory tune to your laptop or some storage device.
 

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Also just an FYI I tried it on my 2017 Mustang GT and you can set your pressure points between each shift as well as select from multiple cold air intakes and all the octane's.

You can actually do quite a bit with just the SCT alone.
 

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This is false. I have an SCT X4 that I used on my 2014 Mustang V6 and it had the options to choose an air intake and the octane. I never got a custom tune and the SCT alone made a huge difference in performance when set to 91 or 93 octane and cold air intake.
Wow, I'm impressed you put a generic tune on a V6 and were impressed.:rolleyes:

I said SHOULD get a custom tune, not a canned tune. Reading is fundamental.;)
 

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This is false. I have an SCT X4 that I used on my 2014 Mustang V6 and it had the options to choose an air intake and the octane. I never got a custom tune and the SCT alone made a huge difference in performance when set to 91 or 93 octane and cold air intake.
Wow, I'm impressed you put a generic tune on a V6 and were impressed.<img src="http://www.mustangevolution.com/forum/images/smilies/rolleyes.gif" border="0" alt="" title="Roll Eyes (Sarcastic)" class="inlineimg" />

I said SHOULD get a custom tune, not a canned tune. Reading is fundamental.
You also said "thinking you would get more out if it was a mistake". Buddy I can read, I just don't take kindly to people who preach to someone while they have no clue what they are talking about.

The OP was CORRECT to think he would have canned tune options, yet you scold him for not doing his homework? Get bent loser.
 

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This is false. I have an SCT X4 that I used on my 2014 Mustang V6 and it had the options to choose an air intake and the octane. I never got a custom tune and the SCT alone made a huge difference in performance when set to 91 or 93 octane and cold air intake.
Wow, I'm impressed you put a generic tune on a V6 and were impressed.<img src="http://www.mustangevolution.com/forum/images/smilies/rolleyes.gif" border="0" alt="" title="Roll Eyes (Sarcastic)" class="inlineimg" />

I said SHOULD get a custom tune, not a canned tune. Reading is fundamental.
Also, even though I own a 5.0 now I still have respect for the sixxer, I loved mine. You have obviously never tried an SCT tune on a V6 so it only shows your ignorance that you would mock how impressed I was by the performance gain. Since you are an expert reader maybe you should hit the books before running your mouth, son.
 

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Also, even though I own a 5.0 now I still have respect for the sixxer, I loved mine. You have obviously never tried an SCT tune on a V6 so it only shows your ignorance that you would mock how impressed I was by the performance gain. Since you are an expert reader maybe you should hit the books before running your mouth, son.
I am an expert actually since I've been tuning my own cars as well as customers cars for years. How many cars have you tuned? Oh that's right, zero since all you know how to do is load generic tunes from a device.

Now sit back and learn a few things from me.;)
 
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