- Your choice of powerful 5-Star Custom tunes (Up To 11HP & 13 lb-ft.)
- Comes with up to 5 5-Star Tunes and SCT Canned Tunes
- Application and octane-based custom tuning
- Can compensate for powerful performance mods
- X4 has user-adjustable parameters, including tire size
- Stores stock file for troubleshooting
- Backed by optional Stage 3 Powertrain Warranties
Complete SCT X4 Tuner and Custom Tune Package
The 3.7L V6 may be the baby motor of the 2011 to 2014 F150s, but it does make pretty decent levels of power out of the gate, which only get better when paired up with custom tuning from 5-Star. These tunes up your 3.7L F150's power, allowing your truck to keep up with higher-tier engine options while getting more low-end grunt for towing and hauling. 5-Star's custom tuning adjusts key parameters and tables within your F150's engine computer so that it squeezes out impressive levels of horsepower and torque without the need for any "hard" bolt-on performance parts. The increased power output is combined with 5-Star's carefully revamped transmission shift points and shift pressures.
Select Tunes by Octane and Performance
5-Star's tunes turn up your 2011 to 2014 F150 3.7L's power by adjusting its fuel curves, ignition timing, fan control, and a ton of other variables so that your truck makes huge amounts of horsepower and torque. 5-Star's custom tuning even takes into account tire size, drivetrain, and axle ratio so that your F150 operates perfectly with your choice of tune. 5-Star's custom tunes are available in several variations for 87, 89, 91, or 93 octane gasoline to give you a wide range of tuning options.
With its factory tune, 5-Star's test truck put down peak numbers of 220 horsepower and and 218lb-ft of torque. With 5-Star's 93 octane Performance/Tow tune, their truck managed to throw down 233 horsepower and 229lb-ft of torque, a gain of 13 horsepower and 11lb-ft of torque. While the peak gains aren't overly dramatic, 5-Star's 93 octane Performance Tune provided a whopping 210lb-ft of torque at 2500rpm, while the factory tune barely managed to crank out 170lb-ft, and not flattening back out until 2700 rpm. That's a 40lb-ft difference in low-end torque that now comes in earlier than stock, meaning you can still get improved low-end grunt, even if you stick with lower-tier fuel.
SCT devices and software are only compatible with Microsoft Windows computers
Warranty vs. Non-Warranty Tune Note: there is no difference in function, horsepower, or torque between Warrantied Custom Tunes and Non-Warrantied Custom Tunes. The only difference between the two, whatsoever, is that Warrantied Tunes will have less parameters (i.e. tire size, gear ratio, etc) open to end-user adjustment. Off-Road Exhaust Systems:
5-Star can no longer provide custom tuning for off-road exhaust systems that delete catalytic converters. 5-Star can only tune for catted exhaust systems. However, 5-Star WILL NOT disable your rear oxygen sensors, which may result in a check engine light.
Flat Rate Shipping to Canada!
We can ship this tuner with 5-Star Custom Tunes to Canada for the low rate of $35! Just call us at 1-877-578-2433 to take advantage of this deal!