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MBRP S6289409 4" Filter Back Exhaust System T409 Stainless Steel Ford F-250/350/450 6.7L

(Ford F-150 2011-14, F-250 Super Duty 2017-26, F-350 Super Duty 2017-26, Expedition 2015-17, Thunderbird 1991-93, F-450 Super Duty 2017-22 + 10 more models)

Part of: MBRP Exhaust System

Other options in this family: MBRP S5148P MBRP S5314P MBRP S6130SLM MBRP S6502409 MBRP S6291409

Manufacturer

Picture for manufacturer MBRP

Part Number

S6289409
8 reviews
Sale Price

$509.99

3 left at this price

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Usually delivered within 2 days

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Product Details

The MBRP S6289409 is a 4-inch filter back single exit 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. Constructed from durable T409 stainless steel, this system delivers enhanced performance, improved sound, and reliable longevity for demanding diesel applications.

Performance Benefits:

  • Increases horsepower by up to 18 HP and torque by up to 28 ft-lbs
  • Reduces exhaust gas temperatures (EGTs) by up to 200°F for cooler, more efficient operation
  • Minimizes backpressure with fully mandrel-bent tubing and optimized bend angles
  • Improves throttle response and fuel efficiency
  • Features a spiral louvered high-flow muffler for maximum exhaust flow
  • Enhances performance when paired with cold air intakes, tuners, and programmers

Construction and Quality:

  • T409 stainless steel construction resists corrosion and withstands extreme temperatures
  • Fully sealed tubing prevents rust-through at critical seam points
  • Mandrel-bent tubing maintains consistent diameter throughout for unrestricted flow
  • Specifically tuned muffler delivers deep, aggressive diesel tone without drone
  • Backed by MBRP's 3-year warranty

Installation:

  • Bolt-on, no-weld design for straightforward installation
  • Direct fit to OEM hangers and mounting points
  • Includes all necessary clamps, hardware, and components
  • Typical installation time is 1.5 to 2 hours

This filter back system replaces the exhaust from the diesel particulate filter (DPF) rearward, providing maximum performance gains while maintaining emissions compliance. The 4-inch diameter tubing ensures optimal flow for heavily modified or stock diesel engines, making it an ideal foundation for building power in your Ford Super Duty.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Products specifications

Fits

Ford F-150 2011-14, F-250 Super Duty 2017-26, F-350 Super Duty 2017-26, Expedition 2015-17, Thunderbird 1991-93, F-450 Super Duty 2017-22, Transit-250 2015-20, Transit-350 2015-20, Transit-150 2015-20, Transit-350 HD 2015-20 + 6 more models

Tail Pipe Diameter

4.000 in.

Inlet Inside Diameter

4.000 in.

Outlet Outside Diameter

4.000 in.

Tip Diameter

5.000 in.

Muffler Type

None

Prop 65

WARNING: This product can expose you to chemicals including nickel (metallic) and chromium (hexavalent compounds) which are known to the State of California to cause cancer and birth defects; or other reproductive harm

Exhaust Type

Single

Exit Style

Turn Out

Material

T-409 Stainless Steel

Exit Position

Single Rear

Tubing Diameter

4.000 in.

Muffler Yes/No

No

Vehicle Segment

Truck

Minor

Single

Major

Diesel

Type

DPF-Back

Bolt-On Yes/No

Yes

Profile

Tour Profile

Tubing Diameter

4 Inch

Fuel Type

Diesel

Exit Style

Single Side Exit

UPS Able

Yes

Material

409 Stainless Steel

fast ordering

great job!

Good experience, will use them again when the price is right.

great

Quick and easy

So far so good

Found what I needed for a good price. They Forgot to send my shipping info but my order still arrived on time so it was no big deal.

Amazing !! FAST SHIPPING and GREAT PRICES !! I couldn't ask for better !! I will definitely shop with Autoplicity again !!

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