MBRP S5209409 4" T409 Cat-Back Single Side Exhaust for 21-24 Ford F-150 2.7/3.5

Vehicle Fitment

• 2021-2024 Ford F-150 (2.7L EcoBoost I4, 3.5L EcoBoost V6, 5.0L V8 gasoline)
• Excludes PowerBoost hybrid and Raptor/Tremor models

Features

• 4" mandrel-bent cat-back exhaust system for improved flow
• T409 stainless steel (Armor Plus series) construction for corrosion resistance
• Race sound profile - aggressive deep tone under throttle
• Single side exit with polished 5" stainless steel tip
• Lifetime limited manufacturer warranty
• Bolt-on installation - may require cutting for some wheelbases
• Mandrel bends keep exhaust gases flowing smoothly
• Hardware included for straightforward installation

Specifications

• Part Number: MBRP S5209409
• Exhaust Type: 4" cat-back system
• Main Tubing Diameter: 4" mandrel-bent
• Material: T409 stainless steel (Armor Plus/XP series)
• Exit Style: Single side exit
• Tip Diameter: 5" polished stainless steel
• Sound Profile: Race (loud, aggressive tone)
• Fitment: Ford F-150 2021-2024 (excludes hybrid PowerBoost & Raptor/Tremor)
• Warranty: Lifetime limited

Included Components

• 1x 4" cat-back exhaust assembly
• 1x Polished 5" stainless steel exhaust tip
• Clamps and OEM-compatible mounting hardware
• Installation instructions

Product Description

The MBRP S5209409 4" Cat-Back Exhaust System is a performance-oriented upgrade engineered for 2021-2024 Ford F-150 trucks equipped with 2.7L EcoBoost, 3.5L EcoBoost, or 5.0L V8 gasoline engines. Built from T409 stainless steel in MBRP's Armor Plus (XP) series, this cat-back replaces the restrictive section of the factory exhaust to help improve exhaust flow, reduce back-pressure, and enhance throttle response. Its Race sound profile delivers a deep and aggressive tone under throttle while still being manageable during daily driving.

Featuring a single side exit with a polished 5" stainless steel tip, the S5209409 adds a commanding visual and acoustic presence to your truck's rear end. Direct bolt-on installation makes setup straightforward for most wheelbases, though cutting may be required for specific cab/bed combinations. Backed by MBRP's lifetime limited warranty, this exhaust system is ideal for F-150 owners seeking significant sound enhancement, improved exhaust flow, and durable construction. Note that it is not compatible with PowerBoost hybrid or Raptor/Tremor models.