• Kooks 1-7/8 x 3 in SS Long Tube Headers w/ Green Catted Connection Pipe & OEM Adapters | 2024-2026 Ford Mustang - Stateside Performance - Headers & Manifolds - Kooks Headers - Kooks 1-7/8 x 3 in SS Long Tube Headers w/ Green Catted Connection Pipe & OEM Adapters | 2024-2026 Ford Mustang
  • Kooks 1-7/8 x 3 in SS Long Tube Headers w/ Green Catted Connection Pipe & OEM Adapters | 2024-2026 Ford Mustang - Stateside Performance - Headers & Manifolds - Kooks Headers - Kooks 1-7/8 x 3 in SS Long Tube Headers w/ Green Catted Connection Pipe & OEM Adapters | 2024-2026 Ford Mustang
  • Kooks 1-7/8 x 3 in SS Long Tube Headers w/ Green Catted Connection Pipe & OEM Adapters | 2024-2026 Ford Mustang - Stateside Performance - Headers & Manifolds - Kooks Headers - Kooks 1-7/8 x 3 in SS Long Tube Headers w/ Green Catted Connection Pipe & OEM Adapters | 2024-2026 Ford Mustang
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KSH1151H452

Kooks Headers

Kooks 1-7/8 x 3 in SS Long Tube Headers w/ Green Catted Connection Pipe & OEM Adapters | 2024-2026 Ford Mustang

Kooks 1-7/8 x 3 in SS Long Tube Headers w/ Green Catted Connection Pipe & OEM Adapters | 2024-2026 Ford Mustang

$4,471.49 USD
$4,471.49 USD
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Shipping calculated at checkout.

The Kooks 1-7/8in x 3in Stainless Steel Long Tube Headers with Ultra Green Catted Connection Pipes fit the 2024-2026 Ford Mustang GT and Dark Horse 5.0L 4V and unlock serious top-end horsepower over the factory manifolds.

Install Difficulty: Professional Install Only
Long tube header installation requires vehicle lift, O2 sensor transfer, and factory exhaust removal; typically takes 6-8 hours. Post-install ECU relearn recommended to adapt to the new exhaust flow.

Product Overview

This Kooks system pairs 1-7/8in stainless primary tubes with 3in catted connection pipes for maximum exhaust flow on the 5.0L Coyote 4V.

Ultra Green high-flow catalysts keep the truck emissions-friendly while OEM adapters bolt the connection pipes directly to the factory catback.

Handcrafted in the USA by a company that has been building race-proven headers since 1962.

Features & Specifications

  • Fits: 2024-2026 Ford Mustang
  • Fits 5.0L 4V Coyote GT and Dark Horse only
  • 1-7/8in stainless steel primary tubes
  • 3in catted connection pipes
  • Ultra Green high-flow catalytic converters
  • Includes OEM adapters for factory catback
  • Long tube header design for top-end power
  • Handcrafted stainless steel construction, made in USA

Fitment

This part fits the following vehicles:

Year Make Model Submodel
2024-2026 Ford Mustang Dark Horse
2024-2025 Ford Mustang Dark Horse Premium
2024-2026 Ford Mustang GT
2024-2026 Ford Mustang GT Premium
⚠ Submodel Fitment: If your submodel is not listed in the fitment table above, we cannot confirm fitment. Please contact us before purchasing to verify.

Shipping & Returns

Tracking is typically provided within 3–5 business days; items shipping direct from the manufacturer may take 5–7. Some items are made to order or may be backordered. Questions about stock? Reach us through live chat or email.

Warranty

All warranties are through the manufacturer and are facilitated by Stateside Performance. Some manufacturers require the end user to contact them directly; in that case we will point you to the right contact. Email us with any warranty questions.

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  • Free shipping over $250

    Free shipping applies to items that are shipped via ground through UPS or FedEx and are over $250 going to the continental 48 states. This does not apply to Alaska or Hawaii, and does not apply to any item(s) that are shipped via freight or with any other option other than ground shipping.

    Shipping policy 

  • 30-day returns

    Returns must be requested within 30 days of delivery. Parts must be new, unused, uninstalled, and in original packaging, with an RMA. Some items are final sale.

    Return policy