Answer
Jan 26, 2026 - 10:46 AM
Great question—and a common concern, especially with new trucks like the 2023-2024 Ford Powerstroke 6.7L. Installing the Sinister Diesel Severe Duty Kit does not automatically void your factory warranty. Under the Magnuson-Moss Warranty Act, a dealer or manufacturer can only deny a warranty claim if they can prove the aftermarket part directly caused the issue. Our Severe Duty Kit is engineered to operate within OEM parameters and is trusted by thousands of Powerstroke owners without warranty problems. For added peace of mind, we recommend discussing any modifications with your servicing dealer before installation. If you have questions or need supporting documentation, we’re always here to help ensure a smooth, confident upgrade experience.
