Kooks 2" Long Tube Headers w/ Competition Connection Pipes (1151H611) - 2015–2026 Mustang GT 5.0L

For extreme horsepower builds where airflow is everything, the Kooks 2-inch Long Tube Headers with Competition Only Connection Pipes deliver uncompromising performance for the 2015–2026 Mustang GT. Designed for high-RPM, high-output Coyote applications, this system is built to support aggressive naturally aspirated, boosted, and race-focused setups.

This complete package features Kooks’ massive 2-inch primary long tube headers constructed from premium T304 stainless steel, paired with 3-inch competition-only stainless steel connection pipes. Thick 3/8-inch laser-cut flanges, mandrel-bent primaries, and ball-and-socket connections ensure durability, precise alignment, and maximum exhaust scavenging. This setup is intended strictly for off-road or competition use and does not connect directly to the OEM exhaust system.

Features

• Complete long tube header and competition connection pipe kit
• Massive 2-inch mandrel-bent primary long tube headers
• Premium T304 stainless steel construction
• 3/8-inch thick laser-cut flanges for secure sealing
• Round port design with factory bolt pattern
• 3-inch stainless steel competition-only connection pipes
• Ball-and-socket style connections for improved alignment
• (2) OEM-style 3-inch to 2.25-inch connection adapters included
• Designed for maximum airflow and extreme horsepower builds

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

Note: Competition-only connection pipes do not connect directly to the OEM exhaust system. Intended for off-road/track use only. Clamps not included.

CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov