MBRP Armor Lite S5231AL Cat-Back Exhaust System for 2018–2019 Ford Expedition 3.5L EcoBoost

THE BEST BANG FOR YOUR BUCK - ARMOR LITE Series exhaust systems are a value option with the same fitment, performance and sound as the premium products from MBRP. Heavy-gauge Aluminized Steel tubing helps to resist dings and dents caused by debris under your vehicle. This material can be a great choice for you if you live in a dry climate that doesn’t see much precipitation, or if you’re looking for great sound on a budget. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends. The end result is that it gives you more fresh air inside your engine’s cylinders, allowing it to produce more power and improve vehicle performance and longevity. MBRP, Stand out from the crowd with a performance exhaust system that sounds great. Armor Lite Cat Back Performance Exhaust System; 3 in.; Aluminized; Single Side; 4 in. OD. Single Wall Tip Included; 4in. Outside Diameter Tip Included.

• Heavy Duty Aluminized Steel, Fully Sealed Tubing for Rust Resistance. Bolt-on Installation. Increased flow by 51%. Moderate Tone. MBRP Signature Styling and Sound.
• Improved Torque And Horsepower
• Lower Exhaust Gas Temperatures
• Increased Throttle Response
• Utilizes OEM Hangers
• Bolt On Design

Brief Description: The MBRP Armor Lite S5231AL Cat-Back Performance Exhaust System delivers improved exhaust flow, responsive performance, and a moderate exhaust tone for select 2018–2019 Ford Expedition models equipped with the 3.5L EcoBoost engine. Designed as a value-focused alternative to premium MBRP systems, it provides comparable fitment, sound, and performance using durable aluminized steel construction.

Mandrel-bent tubing helps maintain a smooth, unrestricted exhaust path, supporting increased airflow and helping the engine produce improved torque, horsepower, and throttle response. The system is engineered for a bolt-on installation and uses the vehicle’s original equipment hangers for a secure, factory-style fit. Its single-side configuration includes a 4-inch outside-diameter single-wall exhaust tip with MBRP signature styling.

• Construction: Heavy-gauge aluminized steel tubing with fully sealed sections helps resist corrosion and damage from road debris.
• Exhaust Flow: Mandrel-bent tubing and a claimed 51% flow increase help reduce restriction and support improved engine performance.
• Performance: Helps improve torque, horsepower, throttle response, and exhaust gas temperature control.
• Installation: Bolt-on design utilizes OEM hangers for straightforward installation without extensive vehicle modification.

Key Product Specifications & Technical Data:

• Brand: MBRP
• Part Number: S5231AL
• Series: Armor Lite
• Product Type: Cat-back performance exhaust system
• Material: Aluminized steel
• Tubing Diameter: 3 inches
• Outlet Configuration: Single side
• Exhaust Tip: 4-inch outside-diameter single-wall tip

What's Included: MBRP Armor Lite S5231AL cat-back exhaust system, associated installation components, and one 4-inch single-wall exhaust tip. Fitment includes select 2018–2019 Ford Expedition models with the 3.5L EcoBoost engine. Verify vehicle configuration and exhaust routing before installation. This product is not CARB approved where applicable; review local emissions regulations before purchase or installation.

Features:

• Heavy-gauge aluminized steel construction helps resist corrosion, road debris, dings, and dents.
• Mandrel-bent tubing maintains smooth internal airflow and supports a claimed 51% increase in exhaust flow.
• Helps improve torque, horsepower, throttle response, and exhaust gas temperature control.
• Bolt-on installation uses OEM hangers and includes a single-side 4-inch single-wall exhaust tip.

Fitments:
2018 Ford Expedition Limited
2018 Ford Expedition Max Limited
2018 Ford Expedition Max Platinum
2018 Ford Expedition Max SSV
2018 Ford Expedition Max XL
2018 Ford Expedition Max XLT
2018 Ford Expedition Platinum
2018 Ford Expedition SSV
2018 Ford Expedition XL
2018 Ford Expedition XLT
2019 Ford Expedition Limited
2019 Ford Expedition Max Limited
2019 Ford Expedition Max Platinum
2019 Ford Expedition Max SSV
2019 Ford Expedition Max XL
2019 Ford Expedition Max XLT
2019 Ford Expedition Platinum
2019 Ford Expedition SSV
2019 Ford Expedition XL
2019 Ford Expedition XLT
2020 Ford Expedition King Ranch
2020 Ford Expedition Limited
2020 Ford Expedition Max King Ranch
2020 Ford Expedition Max Limited
2020 Ford Expedition Max Platinum
2020 Ford Expedition Max SSV
2020 Ford Expedition Max XLT
2020 Ford Expedition Platinum
2020 Ford Expedition SSV
2020 Ford Expedition XLT
2021 Ford Expedition King Ranch
2021 Ford Expedition Limited
2021 Ford Expedition Max King Ranch
2021 Ford Expedition Max Limited
2021 Ford Expedition Max Platinum
2021 Ford Expedition Max SSV
2021 Ford Expedition Max XLT
2021 Ford Expedition Platinum
2021 Ford Expedition SSV
2021 Ford Expedition XLT
2022 Ford Expedition King Ranch
2022 Ford Expedition Limited
2022 Ford Expedition Max King Ranch
2022 Ford Expedition Max Limited
2022 Ford Expedition Max Platinum
2022 Ford Expedition Max SSV
2022 Ford Expedition Max XL
2022 Ford Expedition Max XLT
2022 Ford Expedition Platinum
2022 Ford Expedition SSV
2022 Ford Expedition XL
2022 Ford Expedition XLT
2023 Ford Expedition King Ranch
2023 Ford Expedition Limited
2023 Ford Expedition Max King Ranch
2023 Ford Expedition Max Limited
2023 Ford Expedition Max Platinum
2023 Ford Expedition Max SSV
2023 Ford Expedition Max XLT
2023 Ford Expedition Platinum
2023 Ford Expedition SSV
2023 Ford Expedition XL
2023 Ford Expedition XLT
2024 Ford Expedition King Ranch
2024 Ford Expedition Limited
2024 Ford Expedition Max King Ranch
2024 Ford Expedition Max Limited
2024 Ford Expedition Max Platinum
2024 Ford Expedition Max SSV
2024 Ford Expedition Max XLT
2024 Ford Expedition Platinum
2024 Ford Expedition SSV
2024 Ford Expedition XL STX
2024 Ford Expedition XLT

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