Easy to Read On Screen Data Monitoring
With a HUGE Backlit display, the SCT X4 Power Flash makes it EASY to read the Built-In Data Logging or Real Time Monitored Vehicle Data, view popular sensor data such as EGT, Air / Fuel Ratio or any other 0-5 Volt source!Easy to Install & Easy Return To Stock
The X4 Power Flash device backs up your factory PCM program during installation should you ever need to return your vehicle to the stock PCM program. Restoring your vehicle to the stock PCM program is as easy as selecting Return to Stock from the device menu.Posted by Charles Mayerchak on 20th Apr 2016
Very easy tuner to use. simple plug and play. John's tune brought my truck to life!! I am very happy with all there products and service!! They are great people to deal with.
Posted by mike crittendon on 15th Dec 2014
The x4 exceeded my expectations. Very easy to use, looks good and has all the adjustments you need to fine tune your car/truck. The real time data display is easy to read and can serve as multiple guages. THe llive link gen II software is on a level I didnt know existed before. I am glad I chose the x4 from JLP. I have wanted a tune from JL since the day I got the truck and now I have one!
Posted by mike on 13th Dec 2014
Just got the x4 today. Its too cold to go outside and hook it up at the moment. (20 degrees). But on looks alone its a 5. It is very modern looking and just the right size to be mounted on a permanent basis. I can't wait to test it out tomorrow.