MBRP S6291409 4 Inch Filter Back Dual Exhaust System T409 Stainless Steel

The MBRP S6291409 is a 4-inch filter-back dual exhaust system engineered for 2017 and newer Ford F-250, F-350, and F-450 Super Duty trucks equipped with the 6.7L Power Stroke diesel engine. Part of MBRP's Armor Plus Series, this exhaust system features cool duals configuration with split rear exit and mirror polished tips for an aggressive appearance and enhanced exhaust tone.

Construction and Materials:

Constructed from T409 stainless steel, this exhaust system offers excellent corrosion resistance and durability at a value-oriented price point. The T409 material protects against penetrating rust under normal operating conditions and is easy to clean and maintain. All tubing is mandrel bent to maintain consistent pipe diameter throughout each bend, eliminating flow restrictions and rippling that can occur with crush-bent systems. This mandrel bending process maximizes exhaust flow, helping your engine breathe more efficiently for improved power output and performance.

Key Features:

• 4-inch smooth mandrel bent tubing for maximum flow
• Filter-back design installs behind the diesel particulate filter
• Dual split rear exit configuration
• 5-inch outer diameter mirror polished tips included
• Up to 50% increase in exhaust flow over stock
• Enhanced exhaust tone without excessive drone
• Bolt-on installation with factory mounting points
• Backed by MBRP's Limited Lifetime Warranty

Installation Notes:

This system is designed for bolt-on installation using existing factory mounting locations. Some cutting may be required during installation depending on your specific truck configuration. Vehicles equipped with a 35-inch spare tire may need to relocate the spare tire for proper clearance. Professional installation is recommended for best results.

Warranty Information:

MBRP backs this exhaust system with a Limited Lifetime Warranty against defects in materials and workmanship. Note that while T409 stainless steel resists penetrating rust, exposure to extreme winter conditions, heavy salt air, and aggressive road treatments may accelerate surface corrosion. These cosmetic conditions are not covered under warranty unless the part or system fails structurally.