




The MBRP S5278BLK Armor BLK Axle-Back Exhaust is a bolt-on upgrade that delivers aggressive sound, stealthy blacked-out styling, and durable performance. Built for daily driving and off-road use, it enhances exhaust tone and appearance while maintaining proper clearance and a refined street profile.
Top Features
3-inch mandrel-bent tubing for improved exhaust flow
Armor BLK black-coated T304 stainless steel construction
Dual rear exit turndown design for stealthy, aggressive styling
Street Profile sound: deep, powerful, and controlled
Bolt-on installation with included hardware
1-year manufacturer warranty
Vehicle Fitment
2022–2025 Ford F-150 Raptor – 3.5L EcoBoost HO
2023–2025 Ford F-150 Raptor R – 5.2L Supercharged V8
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 MBRP S5278BLK Axle-Back Exhaust System is engineered for owners who want a bold sound and aggressive presence without sacrificing daily comfort or off-road capability. Designed specifically for the 2022-2025 Ford F-150 Raptor equipped with the 3.5L EcoBoost engine and the 2023-2025 Ford F-150 Raptor R with the 5.2L supercharged V8, this 3-inch dual rear exit setup delivers a refined, deeper exhaust tone and rugged style. The premium Armor BLK high-heat black coating resists corrosion in demanding environments, and the turndown rear exit gives your rig a distinctive, stealthy look while maintaining optimal ground clearance for rock crawling or trail driving. With a bolt-on design, this exhaust swaps in easily and enhances both performance and aesthetics, making it a compelling upgrade for enthusiasts seeking style, sound, and durability.
Durable Armor BLK black-coated T304 stainless steel construction for corrosion resistance and rugged appeal.
3-inch mandrel-bent tubing promotes efficient exhaust flow for improved throttle response.
Dual rear exit turndown tips provide a distinctive, aggressive stance and a refined tone.
High-clearance design helps maintain underbody room for off-road maneuvers.
Bolt-on installation with included clamps and hardware—no welding required.
Street sound profile that amplifies presence without becoming overly loud.
Enhanced exhaust tone delivers a deeper, more authoritative sound that commands attention on and off the road.
Visual impact with sleek black tips and turndown exit for a custom, aggressive rear look.
Improved exhaust flow can boost throttle response and support performance gains.
Corrosion resistance from high-heat black coating for extended life in harsh conditions.
1-Year Warranty gives added peace of mind for material and craftsmanship.
Daily comfortable sound that’s louder and richer than stock without excessive drone.
Part Number: S5278BLK
Exhaust Type: Axle-Back
Tubing Diameter: 3 in
Series: Armor BLK
Material: Black-Coated T304 Stainless Steel
Finish: High-Heat Black Powder Coat
Exit Style: Dual Turndown Rear Exit
Sound Profile: Street Profile (rich, deeper tone)
Hardware Included: Yes (clamps and installation hardware)
Warranty: 1-Year Manufacturer Warranty
Easy – Moderate: This exhaust system is designed to be a bolt-on upgrade, meaning it installs using common hand tools and the included hardware without welding or cutting. Most installers report a straightforward process that can be completed in about 1–2 hours depending on experience and workspace setup. This makes it accessible for DIY enthusiasts or professional shops alike.
This exhaust system fits the following vehicles when equipped with the specified engines:
2022-2025 Ford F-150 Raptor – 3.5L EcoBoost High Output
2023-2025 Ford F-150 Raptor R – 5.2L Supercharged
It is tailored for these models and engines only; verify compatibility before ordering.
If you have any questions about this product or to report product description inaccuracies, contact the MPT Performance experts at (407) 636-7077 or by email.
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.
Thanks for subscribing!
This email has been registered!
MPT has always made me happy with their tunes and prompt customer service response
Unfortunately I can only give 5 stars or I’d give 10. I still have 20k remaining on my PT warranty so I didn’t want to tune till that was up but I so glad I did it now. The trans tuning and power curves are insane now, the shifts are waaaaay better and the pedal response is amazing. The customer service is second to none and they accommodated all my questions and sent me different revisions to the tune to try and each one just got that much better. So in love with the truck again and can’t wait to do more mods.
I chose MPT for my tune because of all of the good reviews I have read online about the performance and smoother shifting that the tune provides.
I absolutely love my AFE carbon fiber track series CAI. The fit and finish are exceptional and I chose to ceramic coat the carbon fiber to keep it glossy long term. I put it on a 2024 Expedition Max Limited 4x4. Noticeable gains in throttle response, power, low end torque and massive increase in turbo sounds/whistling and a whole new growl from the intake. My brother in law has the cv fab CAI and I like this way, way more.
Best money spent! Wayyy more power! Better fuel mileage, and I don’t get the clunky downshifts when I’m pulling up to red lifters and stop signs anymore. Will be buying again for my next Raptor. 💯 % recommend