05-10 Ford Mustang GT 4.6L 3V Kooks 1131H050 1-5/8" Header and Catted (H) Connection Kit

The Kooks 1131H050 1-5/8" Header and Catted (H) Connection Kit for 2005-2010 Ford Mustang GT 4.6L 3V delivers enhanced horsepower, aggressive sound, and improved exhaust flow. Made from 304 stainless steel, it features high-flow catalytic converters and easy bolt-on installation.

Top Features

  • 16GA 304 stainless steel construction
  • 3/8" laser-cut flanges for a leak-free fit
  • 1-5/8" mandrel-bent primaries
  • High-flow 400-cell catalytic converters
  • 2-1/2" outlet connects to OEM exhaust
  • Stock bolt pattern for easy install
  • Includes all necessary hardware

Vehicle Fitment

  • Year Range: 2005-2010
  • Make: Ford
  • Model: Mustang GT
  • Engine: 4.6L 3V V8
Vendor: Kooks Headers
SKU: KSH1131H050
Availability: (Special Order Item)
$ 2,293.22 USD
On-Sale $ 2,293.22 USD
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UPC: 842422179304
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05-10 Ford Mustang GT 4.6L 3V Kooks 1131H050 1-5/8" Header and Catted (H) Connection Kit

The Kooks 1131H050 1-5/8" Header and Catted (H) Connection Kit is an essential performance upgrade for the 2005-2010 Ford Mustang GT with the 4.6L 3V engine. Built with precision and high-quality materials, this kit is designed to unlock more horsepower and torque, while also improving the exhaust sound. Featuring 16GA 304 stainless steel construction and Kooks Performance 400 cell high-flow catalytic converters, this system ensures durability, efficiency, and a noticeable performance boost. With mandrel-bent primaries and laser-cut flanges, the kit promises smooth exhaust flow and easy installation, making it a great choice for both enthusiasts and professionals looking to enhance their Mustang's performance.

Key Features

  • 16GA 304 Stainless Steel Construction for strength, corrosion resistance, and long-lasting performance.
  • 3/8" Thick Laser Cut Flanges provide a durable, leak-free seal and ensure a perfect fit.
  • 1-5/8" Mandrel Bent Primaries ensure smooth exhaust flow and improved power delivery.
  • Kooks Performance Cats with 400 Cell High-Flow Catalytic Converters optimize exhaust flow while maintaining emissions compliance.
  • Stock Bolt Pattern for easy installation, maintaining factory exhaust compatibility.
  • 2-1/2" Outlet that connects seamlessly to the OEM exhaust system.
  • All Necessary Hardware Included for a complete, hassle-free installation.
  • Performance Cats not for use on Forced Induction Applications—designed for naturally aspirated engines.

Benefits

  • Improved Power & Torque: The mandrel-bent tubing and high-flow catalytic converters boost exhaust flow, enhancing engine performance by increasing horsepower and torque.
  • Aggressive Sound: Adds a deeper, more aggressive exhaust note, giving your Mustang a performance-oriented sound that matches its capabilities.
  • Durable & Long-Lasting: Made from high-quality 304 stainless steel, this kit is resistant to corrosion and built to handle high temperatures, ensuring longevity.
  • Easy Installation: The stock bolt pattern and included hardware make the installation process straightforward, requiring no custom modifications.
  • Perfect Fitment: The kit connects to your OEM exhaust system with a 2-1/2" outlet, making it an easy upgrade for a direct fit.

Product Specs

  • Material: 304 Stainless Steel
  • Color: Stainless Steel
  • Tube Diameter: 1-5/8" primaries, 2-1/2" outlet
  • Application: Automotive
  • Shape: H-Pipe
  • Finish: Polished Stainless Steel
  • Flanges: 3/8" Thick Laser-Cut Flanges
  • Primary Tubing: Mandrel Bent for optimal flow
  • Included Components: Headers, catted H-pipe, and all necessary hardware for installation

Install Difficulty Level

The Kooks 1131H050 Header and Catted H-pipe Kit offers an easy-to-follow, bolt-on installation with no welding required. Most users will be able to complete the install in about 3-4 hours with basic hand tools. The kit includes everything needed to ensure a smooth installation process, making it an excellent choice for DIY enthusiasts. For those without experience or time, professional installation is recommended, but the design makes it straightforward enough for most enthusiasts to handle.

Vehicle Fitment

  • Year Range: 2005-2010
  • Make: Ford
  • Model: Mustang GT
  • Engine: 4.6L 3V V8

For any questions regarding this product or to report any inaccuracies in the product description, please contact the MPT Performance experts at (407) 636-7077 or via email.

Shipping Policy

MPT is proud to offer free shipping on most orders over $149.

  • Free shipping applies only to the contiguous United States. Shipping and handling charges will apply to orders outside the contiguous US, and the buyer is responsible for any duty fees or taxes their home country may charge to import goods.
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Turnaround Times:

  • MPT Tunes have a standard turnaround time of 2-3 business days, beginning once we receive your MPT Tune Form.
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  • Physical items that are in stock at MPT and ordered by 4PM EST will be shipped the same day. Orders placed after 4PM EST will be processed on the following business day.

Special Considerations:

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MPT Performance Returns and Refund Policy

  • A Return Authorization Number (RA #) is required for all returns. Please contact an MPT Expert to obtain an RA# before sending anything back.
  • MPT tuning charges and license fees are non-refundable. The sale is final once MPT has sent the tune file via email, which applies to both new tune purchases and tune updates.

Returnable Products:

  • Products (other than MPT Tunes) may be returned within 30 days as long as they have not been installed and are in brand new, unused condition with original packaging. Installed products are non-refundable. MPT reserves the right to deny a return if the product shows signs of installation or damage.
  • Vehicle programmers/tuners that have loaded a tune onto a vehicle cannot be returned.

Refund Amounts:

  • Returns postmarked within 15 days of receipt will be refunded the purchase price minus the shipping cost MPT paid.
  • Returns postmarked between 16 and 30 days will be refunded the purchase price minus a 25% restocking fee and the shipping cost.
  • After 30 days, all sales are final.

Non-Refundable Items:

  • Shipping charges and any package insurance are non-refundable. If free shipping was applied to your purchase, the actual shipping cost will be subtracted from your refund.
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  • Digital products like SCT Tuner Unlocks, HP Tuners Credits, or MPT Tunes cannot be refunded.
  • Decals/Stickers are non-refundable once received by the customer.
Year Make Model Submodel
2005-2010 Ford Mustang GT

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