Kooks 2" Stainless Long Tube Headers (11512602) - Ford Mustang 5.0L

Free up serious horsepower potential and give your 5.0L a stronger, sharper exhaust note with Kooks 2" Stainless Long Tube Headers. Built for high-performance street and track setups, these long tubes are designed to improve exhaust flow over restrictive factory manifolds—perfect for boosted builds or aggressive NA combos that need more breathing room.

Constructed from premium 304 stainless steel with 2" mandrel-bent primaries and 3/8" thick laser-cut flanges, these headers are made to handle heat, RPM, and hard use. They retain a stock bolt pattern and feature a round port design for a precise, consistent seal. Installation requires Kooks front connection pipes and OEM adapters, or a compatible X-pipe/H-pipe setup, and includes the necessary gaskets and oxygen sensor extension harnesses for proper fitment across model years.

Features

• 2" x 3" stainless steel long tube header design for improved exhaust flow
• 304 stainless steel construction for durability and corrosion resistance
• 2" mandrel-bent primaries for smooth, high-velocity airflow
• 3/8" thick laser-cut flanges help maintain a strong, leak-resistant seal
• Round port design with stock bolt pattern for proper fitment
• Includes 755392 gaskets
• Includes O2 sensor extension harnesses:
  • 1x CAS-105979 for 2015 Ford Mustang 5.0L applications
  • 2x CAS-109677-8 for 2018+ Ford Mustang 5.0L applications
• Requires BK109 & BK114 bolt kits for installation (sold separately/required)
• Requires Kooks front connection pipes and OEM adapters or an X-pipe/H-pipe exhaust
• Also available as part of header & connection kits: 1151H632 and 1151H642

Fitment

- 2015 Ford Mustang GT 5.0L
- 2016 Ford Mustang GT 5.0L
- 2017 Ford Mustang GT 5.0L
- 2018 Ford Mustang GT 5.0L
- 2019 Ford Mustang GT 5.0L
- 2020 Ford Mustang GT 5.0L
- 2021 Ford Mustang GT 5.0L
- 2022 Ford Mustang GT 5.0L
- 2023 Ford Mustang GT 5.0L
- 2024 Ford Mustang GT 5.0L
- 2025 Ford Mustang GT 5.0L
- 2026 Ford Mustang GT 5.0L

- 2019 Ford Mustang Bullitt 5.0L
- 2020 Ford Mustang Bullitt 5.0L
- 2021 Ford Mustang Mach 1 5.0L
- 2022 Ford Mustang Mach 1 5.0L
- 2024 Ford Mustang Dark Horse 5.0L

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