Kooks 1-3/4" Long Tube Headers (11412200) - 2011–2014 Mustang GT 5.0L

Built for extreme performance applications, the Kooks 1-3/4" Stainless Steel Long Tube Headers are designed for Mustang owners pushing serious power from their 5.0L Coyote engine. Ideal for high-RPM, high-horsepower builds, these headers maximize exhaust flow and support aggressive naturally aspirated or boosted combinations.

Constructed from premium T304 stainless steel, these long tube headers feature massive 1-3/4" mandrel-bent primaries and thick 3/8-inch laser-cut flanges to ensure durability, proper sealing, and long-term reliability. The round port design and factory bolt pattern provide precise fitment, while included gaskets and hardware simplify installation. These headers are intended to be paired with a compatible Kooks X-pipe or H-pipe to complete the exhaust system.

Features

• 1-3/4" mandrel-bent primary long tube headers
• Premium T304 stainless steel construction
• 3/8-inch thick laser-cut flanges for leak-free sealing
• Round port design for maximum exhaust flow
• Stock bolt pattern for OEM-style fitment
• Designed for high-horsepower Coyote applications
• Includes PY-8025-AL header gaskets
• Includes BK109, BK112, and BK114 bolt kits
• Requires Kooks X-pipe or H-pipe (sold separately)

Fitment

- 2011 Ford Mustang GT 5.0L
- 2012 Ford Mustang GT 5.0L
- 2013 Ford Mustang GT 5.0L
- 2014 Ford Mustang GT 5.0L
- 2012 Ford Mustang Boss 302 5.0L
- 2013 Ford Mustang Boss 302 5.0L

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