




Unlock hidden power in your 2018–2022 Mustang EcoBoost with the Ford Performance M‑9603‑M4CA calibration. Gain up to 35 HP and 76 lb-ft torque, with improved throttle response and optimized shift logic. Includes ProCal 4 tool, high-flow air filter, and is 50-state CARB legal (EO D‑431‑6).
Top Features:
Gains up to 35 HP @ 2,900 RPM
Gains up to 76 lb-ft torque @ 2,600 RPM
Includes ProCal 4 tool and calibration voucher
Ford Performance high-flow air filter (M‑9601‑M) included
91+ octane fuel required
Optimized automatic transmission shift logic
CARB EO# D‑431‑6 (50-state legal)
Ford Performance warranty with dealer installation
Vehicle Fitment:
Fits 2018 Mustang EcoBoost
Fits 2019 Mustang EcoBoost
Fits 2020 Mustang EcoBoost (non-2.3 HO only)
Fits 2021 Mustang EcoBoost (non-2.3 HO only)
Fits 2022 Mustang EcoBoost (non-2.3 HO only)
For both manual and automatic transmissions
Physical products may be returned within 30 days for any reason, provided that the product has not been installed and is in brand new, unused condition with the original packaging. Once a product has been installed, it is non-refundable.
Digital Products, such as MPT Tunes and HP Tuners Credits, are not covered by this.
Please see our Refund Policy or contact an MPT Expert for more information.
MPT is proud to offer free shipping on most orders over $149.
Free Shipping applies only to the contiguous United States. Shipping and handling charges will apply to all orders outside the contiguous US, with the buyer being responsible for any duty fees or taxes their home country may charge to import goods.
With Free Shipping, we will choose the best shipping method for the order. We use all major carriers, including USPS, FedEx, UPS, and DHL.
Items not stocked at our location may incur additional lead-time or charges.
Please our Shipping Policy for more information.


Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1986) is a California law that applies to all companies selling products in California. Proposition 65 requires warnings if a product contains any listed chemical present above very low levels that are known to cause cancer, birth defects or other reproductive harm. Proposition 65’s warning standards are among the most stringent in the world. Proposition 65 is not a product safety law, but rather a “right-to-know” law. Businesses are required to provide warnings to comply with Proposition 65. These warnings are required to be in place for all products offered for sale in California.
There are over 800 chemicals on the Proposition 65 list, which is administered by California's Office of Environmental Health Hazard Assessment (OEHHA), a part of the California Environmental Protection Agency. The list includes naturally occurring and man-made chemicals. Proposition 65 warnings can be seen for a wide variety of everyday consumer products, including Automotive Performance products, and warnings can be seen posted throughout California in a variety of establishments such as hotels, restaurants, automobile dealerships/repair shops, and retail stores just to name a few.
To comply with the requirements of Proposition 65, this warning is present on all products sold by MPT.
More detailed information can be found by going to:
https://www.p65warnings.ca.gov/
The Ford Performance M‑9603‑M4CA calibration is designed to unleash the full potential of the 2018–2022 Mustang EcoBoost (excluding 2020–23 2.3 HO models), delivering significant horsepower and torque gains across the entire power band. Ford Performance built this calibration to provide instant throttle response, optimized shift logic, and performance tuning that significantly elevates the driving experience. With compatibility for both manual and automatic transmissions, this reliable calibration package includes everything needed for installation, making it a compelling upgrade for performance-focused drivers.
Calibrated specifically for the 2018–2022 Mustang EcoBoost (manual & automatic, excludes 2.3 HO)
Up to 35 HP peak gain at 2,900 RPM
Up to 76 lb‑ft peak torque gain at 2,600 RPM
Automatic calibrations include optimized shift schedule for smoother gear changes
Delivered via ProCal 4 tool (M‑12655‑F) with easy-to-follow instructions
Includes high-flow Ford Performance air filter (M‑9601‑M) and calibration voucher
Premium fuel requirement: 91 octane or higher
Significant mid-range power boosts that enhance acceleration and passing capability
Enhanced throttle response for a more engaging driving experience
Seamless automatic shift improvements for performance-oriented driving
50-state emissions legal with CARB Executive Order (EO D‑431‑6)
Exclusive Ford Performance limited warranty when installed at a dealer
Ongoing technical support and calibration updates available via Ford Performance
Size: Calibration delivered electronically via ProCal 4 (no bulky hardware)
Color: N/A (electronic calibration)
Material: Digital performance tuning file and reusable high-flow air filter
Warranty: Ford Performance limited warranty (dealer installation required)
Emissions Compliance: CARB EO D‑431‑6 (50-state legal)
Fuel Requirement: 91 octane or higher
Compatibility: Ford Performance air filter model M‑9601‑M included
Easy – Installation takes approximately 30 minutes using the ProCal 4 programmer. The intuitive, step‑by‑step process minimizes downtime and can be completed in under an hour by most technicians or confident enthusiasts.
Note: Due to limitations in the PCM, if stock calibration re-installation is required, you must go to a Ford dealer for 'as-built' calibration installation. Any questions, please contact the Ford Performance Tech Line.
Designed for 2018, 2019, 2020, 2021, and 2022 Ford Mustang EcoBoost models, compatible with both manual and automatic transmissions. Not suitable for 2020–2023 2.3 HO variants.
This calibration is 50‑state legal and CARB-approved under Executive Order D‑431‑6, ensuring emissions compliance across all U.S. jurisdictions.
Carefully designed by Ford Performance, the M‑9603‑M4CA calibration offers Mustang EcoBoost owners compelling power upgrades, all while maintaining emissions legality and backed by manufacturer warranty coverage.
Contact the MPT Performance experts at (407) 636‑7077 or via email for any questions or concerns about fitment or installation guidance.
MPT is proud to offer free shipping on most orders over $149.
Turnaround Times:
Special Considerations:
A Return Authorization Number is required for all returns. Please contact an MPT Expert to obtain an RA # before sending anything back to us for any reason.
MPT tuning charges and license fees are Non-Refundable. The sale is final when MPT has sent the tune file over email. This includes both new tune purchases and tune updates.
Products other than MPT tunes, digital products, and MPT decals may be returned within 30 days for any reason, provided that the product has not been installed and is in brand new, unused condition with the original packaging. Once a product has been installed it is non-refundable. We reserve the right to deny the return, should the product be received and it display signs of installation or unmentioned damage.
For vehicle programmers/tuners, the vehicle must be returned to stock if a program was installed. If a tuning device is returned and has not been returned to stock, a refund will not be issued, and your tuner will not be sent back without a shipping and handling fee.
The customer is responsible for all shipping charges incurred during the return process.
Amount Refunded:
•Returns post marked before 30 days from the date the item was received will be refunded the purchase price, minus a 25% restocking fee and the cost of shipping.
•After 30 days, all sales are Final.
•Shipping charges along with any package insurance are non-refundable. If your purchase was shipped with our Free Shipping option, the cost of the shipping will be subtracted from the total refund amount.
HP Tuners Credits are assigned to the HP Tuners product with the submitted serial number and cannot be transferred. Once you load a tune to your vehicle with the RTD, these credits are Non-Refundable.
Digital products and files that have no ability to be taken back physically, such as an SCT Tuner Unlock, are Non-Refundable.
nGauge Tune License Fee is included in your initial purchase of MPT tunes for the nGauge. This fee is factored into the price of the tunes and becomes Non-Refundable when the stock file has been emailed to MPT.
MPT Decals are Non-Refundable, once they have been received by the customer.
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018-2020 | Ford | Mustang | EcoBoost |
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