MBRP S5259P Armor Lite 4-Inch Cat-Back Exhaust System for 2015-2020 Ford F-150 2.7L and 3.5L EcoBoost

Transform your F-150’s performance and sound with the MBRP S5259P 4" Cat-Back Single Side Exit Exhaust—designed to replace your OEM system and bring more life and attitude to your truck. If your factory exhaust is limiting performance, this system delivers serious gains along with a bold new sound. Designed specifically for the Ford F-150 2.7L/2.5L, the S5259P features 4-inch mandrel-bent tubing for maximum exhaust flow and an aggressive look. This system delivers up to 28 horsepower gains, 9 ft-lbs of torque, and an impressive 88% increase in exhaust flow over stock—unlocking noticeable performance improvements across the board. Precision jig manufacturing ensures a perfect fit using OEM hanger locations, and all necessary clamps are included for an easy, bolt-on installation with no welding required. Finished with a powerful aggressive exhaust tone, the S5259P gives your F-150 the commanding sound to match its performance. Aggressive, high-flowing, and easy to install, it’s the ultimate upgrade to bring your truck back to life with more power, more sound, and more attitude. Armor Lite Cat Back Exhaust System; 4 in.; Aluminized Steel; Single Side; Incl. Camps; No Tip Included. This exhaust kit has one of the most aggressive sounds in the MBRP product line.

• Heavy Duty Aluminized Steel. Bolt-on Installation. Up to 28 horsepower gains, 9ft-lbs torque gains and 88 percent flow increase. Smooth Mandrel bent tubing. Aggressive exhaust tone.
• 9Ft-Lbs Torque Gains And 88 Percent Flow Increase
• Heavy Duty Aluminized Steel
• Smooth Mandrel Bent Tubing
• Up To 28 Horsepower Gains
• Bolt-On Installation
• Street Profile

Upgrade your truck’s performance and sound with the MBRP S5259P Armor Lite cat-back exhaust system. Designed for select 2015-2020 Ford F-150 models equipped with the 2.7L or 3.5L EcoBoost engine, this 4-inch single-side-exit system replaces the factory exhaust to improve airflow and deliver a noticeably more aggressive exhaust tone. The system is designed for street use and does not include an exhaust tip.

Built from heavy-duty aluminized steel, the MBRP S5259P uses smooth mandrel-bent tubing to help maintain consistent exhaust flow through the system. MBRP testing indicates gains of up to 28 horsepower, 9 pound-feet of torque, and an 88 percent increase in exhaust flow compared with the stock system. The result is stronger engine breathing and a bold sound that complements the performance of your F-150.

Precision jig manufacturing helps ensure accurate alignment and installation using the vehicle’s original hanger locations. Included clamps support a straightforward bolt-on installation without welding, making this system a practical replacement for the factory exhaust. The kit is engineered for a direct-fit application on compatible configurations, but professional installation is recommended. This product is not CARB approved, and applicable emissions requirements should be verified before installation.

Key Product Specifications and Technical Data

• Brand: MBRP
• Part Number: S5259P
• Product Type: Cat-back exhaust system
• Material: Heavy-duty aluminized steel
• Tubing Diameter: 4 inches
• Exit Configuration: Single side exit
• Installation: Bolt-on using OEM hanger locations; clamps included
• Performance Claims: Up to 28 horsepower, 9 pound-feet of torque, and 88 percent increased exhaust flow

What’s Included

One MBRP S5259P Armor Lite cat-back exhaust system with aluminized steel tubing and installation clamps. Exhaust tip is not included.

Fitment

Fits select 2015-2020 Ford F-150 models with 2.7L or 3.5L EcoBoost engines, including 2015-2016 applications and compatible configurations through 2020. Excludes the 2019 Ford F-150 Limited. Verify cab, bed, drivetrain, engine, and factory exhaust configuration before ordering.

Features:

• Performance Improvement: Delivers up to 28 horsepower and 9 pound-feet of torque gains when compared with the factory exhaust system.
• Increased Exhaust Flow: Provides an indicated 88 percent increase in exhaust flow to support improved engine breathing.
• Mandrel-Bent Tubing: Smooth 4-inch tubing helps maintain consistent airflow and reduces restrictions.
• Aggressive Exhaust Tone: Produces one of the more aggressive exhaust sounds in the MBRP product line.
• Durable Construction: Heavy-duty aluminized steel is designed for dependable street use.
• Bolt-On Installation: Uses OEM hanger locations and included clamps for installation without welding.
• Single Side Exit: Provides a clean, direct replacement layout for compatible Ford F-150 configurations.
• Vehicle-Specific Fitment: Designed for select 2015-2020 Ford F-150 2.7L and 3.5L EcoBoost applications, excluding the 2019 Limited.

Fitments:
2015 Ford F-150 King Ranch
2015 Ford F-150 Lariat
2015 Ford F-150 Platinum
2015 Ford F-150 XL
2015 Ford F-150 XLT
2016 Ford F-150 King Ranch
2016 Ford F-150 Lariat
2016 Ford F-150 Limited
2016 Ford F-150 Platinum
2016 Ford F-150 SSV
2016 Ford F-150 XL
2016 Ford F-150 XLT
2017 Ford F-150 King Ranch
2017 Ford F-150 Lariat
2017 Ford F-150 Limited
2017 Ford F-150 Platinum
2017 Ford F-150 SSV
2017 Ford F-150 XL
2017 Ford F-150 XLT
2018 Ford F-150 King Ranch
2018 Ford F-150 Lariat
2018 Ford F-150 Limited
2018 Ford F-150 Platinum
2018 Ford F-150 Police Responder
2018 Ford F-150 SSV
2018 Ford F-150 XL
2018 Ford F-150 XLT
2019 Ford F-150 King Ranch
2019 Ford F-150 Lariat
2019 Ford F-150 Platinum
2019 Ford F-150 Police Responder
2019 Ford F-150 SSV
2019 Ford F-150 XL
2019 Ford F-150 XLT
2020 Ford F-150 King Ranch
2020 Ford F-150 Lariat
2020 Ford F-150 Limited
2020 Ford F-150 Platinum
2020 Ford F-150 Police Responder
2020 Ford F-150 SSV
2020 Ford F-150 XL
2020 Ford F-150 XLT

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Units Per Sku: 1
Regular Stock: t