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The MBRP S5281304 Armor Pro cat-back exhaust is engineered for compatible 2015-2020 Ford F-150 trucks with the 2.7L EcoBoost, 3.5L EcoBoost, or 5.0L V8. Its three-inch T304 stainless-steel construction, street sound profile, and passenger-side dual outlet are designed to add a deeper performance tone while retaining practical daily-driver manners.
Key Features
- Armor Pro construction uses corrosion-resistant T304 stainless steel from inlet to outlet.
- Three-inch mandrel-bent tubing supports smooth exhaust flow and maintains consistent diameter through the bends.
- Street Profile tuning produces a deeper, more aggressive exterior note without the intensity of MBRP's Race Profile.
- Passenger-side exit uses two mirror-polished, dual-wall, angle-cut 4.5-inch T304 stainless-steel outlets.
- MBRP reports gains of up to 6 horsepower and 8 lb-ft of torque on its tested 5.0L application.
- Bolt-on design uses factory hanger locations and includes a lifetime warranty from MBRP.
Fitment
| Years | Make | Model | Engines | Important Notes |
|---|---|---|---|---|
| 2015-2020 | Ford | F-150 | 2.7L EcoBoost, 3.5L EcoBoost, 5.0L V8 | Excludes Raptor and 2019-2020 Limited models with the 3.5L High Output engine. Confirm cab, bed, wheelbase, and current MBRP application notes before ordering. |
Specifications
| Brand | MBRP |
|---|---|
| Manufacturer Part Number | S5281304 |
| Product Type | Cat-Back Exhaust System |
| Series | Armor Pro |
| Material | T304 Stainless Steel |
| Tubing Diameter | 3 inches |
| Sound Profile | Street |
| Outlet Configuration | Passenger-side exit with dual outlets |
| Tip Style | Dual-wall, angle-cut, mirror-polished T304 stainless steel |
| Tip Size | Dual 4.5-inch outlets |
| Installation | Bolt-on using factory hanger locations |
| Warranty | MBRP lifetime warranty |
| Condition | New |
What's Included
One complete MBRP S5281304 cat-back exhaust system in the manufacturer-specified configuration, including the T304 stainless-steel exhaust sections, muffler, polished dual outlets, clamps, and installation hardware supplied by MBRP. Reuse factory components only where the current MBRP instructions specify.
Installation Notes
Allow the factory exhaust to cool, support the truck safely, and test-fit every section before final tightening. Align the tubing and outlets with adequate clearance from the body, suspension, spare tire, wiring, and heat-sensitive components. Tighten connections evenly, check for leaks, and recheck alignment after the first heat cycles. Professional installation is recommended.
Frequently Asked Questions
Does MBRP S5281304 fit every 2015-2020 F-150?
No. It is listed for compatible 2.7L EcoBoost, 3.5L EcoBoost, and 5.0L trucks, but excludes the Raptor and 2019-2020 Limited 3.5L High Output applications. Cab, bed, and wheelbase details still need to match current MBRP data.
Is this an axle-back or a complete cat-back system?
It is a cat-back system that replaces the exhaust downstream of the factory catalytic-converter connection in the MBRP-specified configuration.
What sound should I expect?
MBRP classifies S5281304 as a Street Profile system, delivering a deeper performance tone while remaining more restrained than the brand's Race Profile systems.
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