07-10 Ford Mustang Shelby GT500 5.4L Kooks 11323200 3" x 2-1/2" (OEM) SS Catted X-Pipe

The Kooks 11323200 Catted X-Pipe is designed for the 2007-2010 Ford Mustang Shelby GT500 with the 5.4L engine. Featuring Kooks GREEN Cats for durability and emissions compliance, this high-flow X-pipe boosts horsepower, enhances exhaust sound, and offers easy installation with a direct fit.

Top Features

  • Kooks GREEN Cats rated for 750 RWHP
  • 304 stainless steel construction for durability
  • High-flow X-pipe design for improved performance
  • Aggressive exhaust tone for enhanced sound
  • Direct-fit installation with OEM exhaust

Vehicle Fitment

  • Make: Ford
  • Model: Mustang Shelby GT500
  • Year Range: 2007-2010
  • Engine: 5.4L V8
Vendor: Kooks Headers
SKU: KSH11323200
Availability: (Special Order Item)
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UPC: 842422146443
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07-10 Ford Mustang Shelby GT500 5.4L Kooks 11323200 3" x 2-1/2" (OEM) SS Catted X-Pipe

The Kooks 11323200 3" x 2-1/2" Stainless Steel Catted X-Pipe is the latest evolution in performance exhaust for the 2007-2010 Ford Mustang Shelby GT500 with the 5.4L engine. This upgraded X-pipe now features Kooks GREEN Cats, the premium, EPA-verified catalytic converters designed to handle up to 750 RWHP. Kooks has phased out the standard cats in favor of these durable, high-flow GREEN Cats, ensuring optimal performance and emissions compliance for modern muscle cars.

Built from 304 stainless steel, the Kooks 11323300 X-pipe offers exceptional durability and corrosion resistance. The 3" inlet and 2-1/2" outlet are designed for a direct fit with your factory exhaust, making installation easy and seamless. The high-flow design maximizes exhaust flow, boosting horsepower and torque while delivering a more aggressive exhaust note that complements the powerful Shelby GT500 engine. Whether you’re looking to enhance your vehicle’s performance or simply enjoy a deeper, throatier exhaust sound, this product offers the perfect balance of power, sound, and legal emissions compliance.

Key Features

  • Kooks GREEN Cats for better durability and emissions compliance, rated for up to 750 RWHP.
  • 304 stainless steel construction for optimal strength and rust resistance.
  • High-flow X-pipe design to maximize exhaust flow and improve engine performance.
  • Aggressive exhaust tone for a more powerful and exciting sound.
  • EPA-compliant to meet emissions standards for legal use.
  • Direct-fit for easy, bolt-on installation with OEM exhaust system.

Benefits

  • Improved engine performance with increased horsepower and torque.
  • Enhanced exhaust sound with a deep, aggressive tone that complements the Mustang GT500.
  • Kooks GREEN Cats designed for high-performance applications while maintaining emissions compliance.
  • Durable construction made from 304 stainless steel for long-lasting reliability.
  • EPA verified for street legal use in all 50 states.
  • Backed by Kooks’ limited warranty for peace of mind and product support.
  • Simple installation with a direct-fit design that requires no modifications.

Product Specs

  • Part Number: 11323200
  • Material: 304 stainless steel for corrosion resistance and strength
  • Finish: Polished stainless steel for a sleek look
  • Tubing Diameter: 3" inlet, 2-1/2" outlet (OEM compatible)
  • Shape: X-pipe configuration for optimal exhaust flow
  • Application: Automotive, specifically for 2007-2010 Ford Mustang Shelby GT500 with 5.4L engine

Install Difficulty Level

The Kooks 11323200 Catted X-Pipe features a direct bolt-on design, making installation straightforward and simple. Typically, the process takes 2-3 hours, depending on experience, with no modifications needed to the existing exhaust system. This product is suitable for both DIY enthusiasts and professional installers.

Vehicle Fitment

  • Make: Ford
  • Model: Mustang Shelby GT500
  • Year Range: 2007-2010
  • Engine: 5.4L V8

For any questions or to report inaccuracies in the product description, contact the MPT Performance experts at (407) 636-7077 or by 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.
  • With free shipping, we will choose the best shipping method for your order. We use all major carriers, including USPS, FedEx, UPS, and DHL.

Turnaround Times:

  • MPT Tunes have a standard turnaround time of 2-3 business days, beginning once we receive your MPT Tune Form.
  • We do not process orders on weekends or observed holidays, which do not count as business days.
  • 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:

  • Items not stocked at our location will follow the same processing times but may experience lead-time delays and could incur additional charges. Shipping methods may vary for these items based on what was paid and the requested delivery speed. If you need an item by a specific deadline, please contact an MPT Expert.
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MPT Performance Returns and Refund Policy

A Return Authorization Number is required for all returns. Please contact an MPT Expert to obtain an RA # before sending anything back to us for any reason.

MPT tuning charges and license fees are Non-Refundable. The sale is final when MPT has sent the tune file over email. This includes both new tune purchases and tune updates.

Products other than MPT tunes, digital products, and MPT decals may be returned within 30 days for any reason, provided that the product has not been installed and is in brand new, unused condition with the original packaging. Once a product has been installed it is non-refundable. We reserve the right to deny the return, should the product be received and it display signs of installation or unmentioned damage.

For vehicle programmers/tuners, the vehicle must be returned to stock if a program was installed. If a tuning device is returned and has not been returned to stock, a refund will not be issued, and your tuner will not be sent back without a shipping and handling fee.

The customer is responsible for all shipping charges incurred during the return process.

Amount Refunded:
•Returns post marked before 30 days from the date the item was received will be refunded the purchase price, minus a 25% restocking fee and the cost of shipping.
After 30 days, all sales are Final.
•Shipping charges along with any package insurance are non-refundable. If your purchase was shipped with our Free Shipping option, the cost of the shipping will be subtracted from the total refund amount.

HP Tuners Credits are assigned to the HP Tuners product with the submitted serial number and cannot be transferred. Once you load a tune to your vehicle with the RTD, these credits are Non-Refundable.

Digital products and files that have no ability to be taken back physically, such as an SCT Tuner Unlock, are Non-Refundable.

nGauge Tune License Fee is included in your initial purchase of MPT tunes for the nGauge. This fee is factored into the price of the tunes and becomes Non-Refundable when the stock file has been emailed to MPT.

MPT Decals are Non-Refundable, once they have been received by the customer.

Year Make Model Submodel
2007-2010 Ford Mustang Shelby GT500

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