21-Up Ford F-150 4 Inch Cat Back Single Side Race version T409 Stainless Steel Exhaust System MBRP
SKU: 56188454811

21-Up Ford F-150 4 Inch Cat Back Single Side Race version T409 Stainless Steel Exhaust System MBRP

Sale price$267.75 Regular price$297.50
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

21-Up Ford F-150 4 Inch Cat Back Single Side Race version T409 Stainless Steel Exhaust System MBRPReliability Backed for a lifetime Armor Plus Series exhaust systems are crafted from corrosion resistant T409 Stainless Steel a value oriented material designed to protect from penetrating rust and will stand up to almost anything you can throw at it. T409 Stainless Steel tubing is easy to clean. If you're looking for a performance exhaust system with a Lifetime Warranty, this is probably the one for you. If you don't find yourself faced with lots of

Reliability Backed for a lifetime- Armor Plus Series exhaust systems are crafted from corrosion-resistant T409 Stainless Steel - a value-oriented material designed to protect from penetrating rust and will stand up to almost anything you can throw at it. T409 Stainless Steel tubing is easy to clean.

If you're looking for a performance exhaust system with a Lifetime Warranty, this is probably the one for you. If you don't find yourself faced with lots of precipitation and salt, this is all you're ever going to need. 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.

It's important to note that T409 Stainless Steel is resistant to penetrating rust but winter conditions, heavy salt air, and road treatments might accelerate the corrosion process, these conditions are not covered by MBRP's manufacturer warranty unless the part or system fails completely. When it comes to a performance exhaust system, choose the MBRP ARMOR PLUS Series for a reliable option backed for a lifetime. MBRP, Stand out from the crowd with a perfromance exhaust system that sounds great.

T409 Stainless Steel 4 Inch Cat-Back Single Side Exit with Mirror Polish Tip, Race Version

Fitment:

  • 2021-Up Ford F-150 2.7L EcoBoost, 3.5L EcoBoost and 5.0L
  • Excludes PowerBoost

Features:

  • Aggressive Exhaust Tone, Especially on 5.0L Models
  • Gains Of Up To 9 Horsepower
  • Up To 20ft-lbs Torque Gains
  • Up To 85 Percent Flow Increase
  • Bolt-on Installation
  • 5 Inch OD Tip Included

Note: Cutting may be required for installation

MBRP Exhaust: Behind these walls are people as obsessed as you with the quest for the ultimate in performance exhaust. For over fifteen years MBRP has been delivering performance enthusiasts the most in power, the most in product quality and the most in customer responsiveness. For the future, MBRP is determined to provide the highest fill rates in the industry, offer the most complete line of exhaust for diesel and sports truck enthusiasts and to be always pushing upward the definition of performance

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 56188454811

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Logan
Louisville, US
★★★★★ 5
Helped smooth engine idle and acceleration
Size: 300 Milliliter
Bought a new to me bmw and this stuff made it run smoother definitely helped clean things up internally car has a smoother throttle response and sounds smoother at idle will definitely be using as recommended to keep injectors and internals cleaner
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026
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Jennifer Kaye
Dallas, US
★★★★★ 5
This is the product you want
Size: 300 Milliliter
'08 Honda Fit 270k This product works! Felt almost immediately, acceleration opened up. Excellent.
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Reviewed in the United States on March 5, 2026
R
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Roboman
Grantham, US
★★★★★ 5
This stuff really works fast and improves mpg like you won’t believe
Size: 300 Milliliter
I’ve tried many other types of fuel injector cleaners but this brand is amazing. I ran my truck down to less than a quarter of a tank of gas and poured it into the tank. I then drove 30 miles to an appointment and spent an hour in the appointment on the way home I noticed my mpg had gone up significantly. My truck tells me how many miles per gallon. I’m getting as I drive. I had gotten a code and I replaced the mass air filter and found a slight crack in an air hose, which I replaced that help with my code a little bit, but cleaning the fuel injectors with this product made such a significant difference. I just simply had a hard time believing it, but it’s true. I’m done with all those other brands of fuel injector cleaners which never really seemed to help much if you really want an amazing experience give this product to try.
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Reviewed in the United States on August 4, 2025
M
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MI
Birmingham, US
★★★★★ 5
Perfect fit
Color: 20pcs
Perfect replacement retainer clips for my car.
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Reviewed in the United States on February 15, 2026
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Godwin
San Leandro, US
★★★★★ 5
use these every day
Color: 20pcs
fits better than OEM and better price
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Reviewed in the United States on March 13, 2026

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