Product Info
Product Info
2020-2021 Ford SCT X4 Tuner with Tunes pairs the listed tuning device with the applicable tune package and any required access items shown in the selected options.
Confirm the listed year, make, model, engine, and any truck-specific configuration before purchasing. Review the available Tune Packages selections before ordering. The exact contents and fitment depend on the options selected on this product page.
How to Choose Your Options
- Tune quantity: Single Tune supplies one calibration for the selected setup. SOTF/Multi-Tune + Switch provides multiple tune positions and the listed switch so supported calibrations can be changed without reflashing the truck.
Fits
| Year | Make | Model | Engine |
| 2020-2021 | Ford | F-Series | 6.7L Powerstroke |
All New Sct X4 tuner is included with all the needed cables along with the custom tunes.
Hp levels 0/50/100/150/200Hp.
A form will be emailed to you to fill out to receive the tunes.
All Powerstroke Tunes Include Transmission Tuning (TCM)
When comparing most tunes on the market, Unlimited Diesels is often extremely similar, however, there is another factor that matters even more, which is the "usable power". This "usable power" is what Unlimited Diesels has optimized and was achieved by testing these tunes throughout various North American climates and conditions. Unlimited Diesels will supply you with Canadian-written, fast-spooling, hard-pulling, and great-shifting tunes that will let you enjoy your 6.7L for years to come.
The SCT devices are one of the most cost-effective ways to get tuning on your 6.7L Powerstroke.
SCT X4 Tuners.
Unlock your vehicle’s hidden performance by optimizing your vehicle’s computer for maximum horsepower, torque, increased throttle response, firmer shifts, and even increased fuel mileage!! The X4 is the next generation in-vehicle PCM tuning and Performance Tune. Improvement in both size, speed, versatility, and tuning capability all in one awesome device.
Fitment and Options
Options on this page are tied to real Shopify variants. Unavailable combinations are disabled automatically, and the cart receives the exact selected variant.
Unlimited Packages, tuners, and tunes require a full 17-character VIN before checkout. Check your VIN first. If it cannot be verified, use the manual-review option and acknowledge possible processing delays. Your VIN and review status are saved separately from your modification notes.
Bundle pages can add matching support parts with the main product. Exhaust, EGR, tips, intakes, switches, and support parts are grouped so the order stays clean.
Shipping
Shipping options and delivery times are shown at checkout. Fast air shipping may be available at checkout. Some tuning, custom-order, and VIN-matched items may require extra processing time.
Returns
Request a return within 30 days after receiving eligible, unused, uninstalled hardware in its original packaging. Physical tuning devices must not have been activated, registered to a vehicle, or used to program a vehicle.
Tunes and tuning licenses are non-refundable once activated or used. This applies to EZ Lynk, EFI Live, and all other tuning platforms, including tunes supplied with a hardware package.
Rights concerning faulty or incorrectly supplied products are not affected. Read the full Return and Refund Policy
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Unlimited Diesels
Built to help you order the right diesel setup.
1Select the exact product options that match your truck.
2For tuners, tunes, and bundles, verify the VIN and add modification notes.
3Add matching support parts below the product when they are needed.
4Review the cart, then checkout with the exact selected variants.
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Installation instructions
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