15-23 Ford Mustang GT 5.0L Kooks 1151H631 2" Stainless Headers & GREEN Catted Connection Kit.

Upgrade your 2015-2023 Mustang GT with the Kooks 1151H631 2" Stainless Headers and GREEN Catted Connection Kit. This kit enhances performance with high-flow stainless steel headers and eco-friendly GREEN catalytic converters.

Top Features

  • Durable stainless steel construction
  • 2" primary tubes for improved exhaust flow
  • GREEN catalytic converters for emissions compliance
  • Enhanced horsepower and torque

Vehicle Fitment

  • Year Range: 2015-2023
  • Make: Ford
  • Model: Mustang GT
  • Engine: 5.0L V8
Vendor: Kooks Headers
SKU: KSH1151H631
Availability: 10 In Stock
$ 3,507.13 USD
On-Sale $ 3,507.13 USD
Normally
Better hurry, only 10 left in stock.

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This product is NOT CARB-APPROVED. We cannot ship this item to CA or any Carb regulated states. To avoid cancellation fee, do not order this if you live in California.
This product has emissions testing pending, contact us to check on status if California resident.
UPC: 842422172428
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Proposition65 Warning: Cancer and Reproductive Harm

15-23 Ford Mustang GT 5.0L Kooks 1151H631 2" Stainless Headers & GREEN Catted Connection Kit

Elevate the performance of your 2015-2023 Ford Mustang GT with the Kooks 1151H631 2" Stainless Headers and GREEN Catted Connection Kit. This premium kit includes high-performance stainless steel headers and a GREEN catted connection pipe, designed to enhance exhaust flow and boost engine power while maintaining emissions compliance. The GREEN catalytic converters ensure that this kit is environmentally friendly and CARB approved, providing both superior performance and regulatory compliance.

Key Features

  • Premium Stainless Steel: Ensures durability and resistance to corrosion.
  • 2" Primary Tubes: Optimizes exhaust flow for increased horsepower and torque.
  • GREEN Catalytic Converters: Eco-friendly and CARB approved for emissions compliance.
  • Enhanced Performance: Improves engine efficiency and exhaust note.

Benefits

  • Increased Power: Boosts horsepower and torque for a more powerful driving experience.
  • Improved Exhaust Flow: Reduces back pressure and enhances throttle response.
  • Eco-Friendly: Meets emissions standards with GREEN catalytic converters.
  • Warranty Included: Backed by Kooks' warranty for assurance of quality and performance.

Product Specs

  • Size: 2 inch primary tube diameter
  • Material: Stainless steel
  • Finish: Polished headers with GREEN catted connection
  • Includes: Headers and GREEN catted connection kit

Install Difficulty Level Installation is relatively straightforward, generally completed in about 4 to 6 hours. This makes it manageable for those with basic mechanical skills and standard tools.

Vehicle Fitment

  • Year Range: 2015-2023
  • Make: Ford
  • Model: Mustang GT
  • Engine: 5.0L V8

CARB Approval Status: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.

For additional information or to address any product description issues, 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.
  • SCT Tuner Orders with the Prioritized Order option must have their tune forms submitted by 3PM EST to be completed the same day. Forms submitted after this time will be processed the next business day.
  • Orders will ship to the billing address listed on your order. If paying by credit or debit card, we can only ship to the billing address. Contact an MPT Expert for assistance if you need a different shipping address.

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.
  • HP Tuners Credits are non-refundable once they’ve been assigned to a device’s serial number, which occurs either during the purchase or upon completing the tune form.
  • 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
2019-2020 Ford Mustang Bullitt
2015-2023 Ford Mustang GT
2015 Ford Mustang GT 50 Years Limited Edition
2015-2023 Ford Mustang GT Premium
2021-2023 Ford Mustang Mach 1

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