Kooks Ford 5.0L 4V Coyote Engine Stage 8 Locking Header Bolt Kit — 10mm x 150 Coarse Thread

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Kooks Headers

Kooks Headers engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Kooks Headers lineup with fast shipping and expert fitment support — order with confidence.

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Kooks Stage 8 Locking Header Bolt Kit for Ford 5.0L 4V Coyote Engines

Ensure your high-performance Ford 5.0L 4V Coyote engine's headers stay securely in place with this premium Stage 8 Locking Header Bolt Kit from Kooks Headers. Engineered for reliability and durability, this kit is designed to prevent header bolts from loosening due to extreme heat and vibration common in performance applications.

Key Features:

  • Application: Specifically designed for Ford 5.0L 4V Coyote engines.
  • Thread Size: 10mm x 150 Coarse Thread, ensuring a robust connection.
  • Stage 8 Locking System: Utilizes a unique locking mechanism that actively prevents bolts from backing out, even under severe conditions.
  • High-Quality Materials: Constructed from premium materials to withstand high temperatures and resist corrosion.
  • Easy Installation: Designed for a straightforward installation process, allowing you to get back on the road or track faster.

Why Choose Kooks Stage 8 Locking Bolts?

Vibrations and thermal cycling can cause standard header bolts to loosen over time, leading to exhaust leaks, reduced performance, and potential damage. The Stage 8 system employs a patented locking mechanism that provides a positive lock, eliminating the need for unreliable locking washers or messy thread-locking compounds. This kit is essential for any Mustang or F-150 owner pushing the limits of their Coyote engine.

Upgrade your exhaust system's reliability with the Kooks Stage 8 Locking Header Bolt Kit. Experience peace of mind knowing your headers are securely fastened. Get yours today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2010-2014 Ford F-150 SVT Raptor
2015-2020 Ford F-150 King Ranch
2015-2020 Ford F-150 Lariat
2015-2020 Ford F-150 Platinum
2015-2020 Ford F-150 XL
2015-2020 Ford F-150 XLT
2015-2020 Ford Mustang Shelby GT350
2015-2020 Ford Mustang Shelby GT350R
2015-2021 Ford Mustang GT
2015-2021 Ford Mustang GT Premium
2019-2020 Ford Mustang Bullitt

Product Details

Product Description
Part Numbers
Sizing & Fit

About Kooks Headers

Kooks Headers engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Kooks Headers lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Kooks Stage 8 Locking Header Bolt Kit for Ford 5.0L 4V Coyote Engines

Ensure your high-performance Ford 5.0L 4V Coyote engine's headers stay securely in place with this premium Stage 8 Locking Header Bolt Kit from Kooks Headers. Engineered for reliability and durability, this kit is designed to prevent header bolts from loosening due to extreme heat and vibration common in performance applications.

Key Features:

  • Application: Specifically designed for Ford 5.0L 4V Coyote engines.
  • Thread Size: 10mm x 150 Coarse Thread, ensuring a robust connection.
  • Stage 8 Locking System: Utilizes a unique locking mechanism that actively prevents bolts from backing out, even under severe conditions.
  • High-Quality Materials: Constructed from premium materials to withstand high temperatures and resist corrosion.
  • Easy Installation: Designed for a straightforward installation process, allowing you to get back on the road or track faster.

Why Choose Kooks Stage 8 Locking Bolts?

Vibrations and thermal cycling can cause standard header bolts to loosen over time, leading to exhaust leaks, reduced performance, and potential damage. The Stage 8 system employs a patented locking mechanism that provides a positive lock, eliminating the need for unreliable locking washers or messy thread-locking compounds. This kit is essential for any Mustang or F-150 owner pushing the limits of their Coyote engine.

Upgrade your exhaust system's reliability with the Kooks Stage 8 Locking Header Bolt Kit. Experience peace of mind knowing your headers are securely fastened. Get yours today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2010-2014 Ford F-150 SVT Raptor
2015-2020 Ford F-150 King Ranch
2015-2020 Ford F-150 Lariat
2015-2020 Ford F-150 Platinum
2015-2020 Ford F-150 XL
2015-2020 Ford F-150 XLT
2015-2020 Ford Mustang Shelby GT350
2015-2020 Ford Mustang Shelby GT350R
2015-2021 Ford Mustang GT
2015-2021 Ford Mustang GT Premium
2019-2020 Ford Mustang Bullitt

Product Details

Product Description

About Kooks Headers

Kooks Headers engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Kooks Headers lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Kooks Stage 8 Locking Header Bolt Kit for Ford 5.0L 4V Coyote Engines

Ensure your high-performance Ford 5.0L 4V Coyote engine's headers stay securely in place with this premium Stage 8 Locking Header Bolt Kit from Kooks Headers. Engineered for reliability and durability, this kit is designed to prevent header bolts from loosening due to extreme heat and vibration common in performance applications.

Key Features:

  • Application: Specifically designed for Ford 5.0L 4V Coyote engines.
  • Thread Size: 10mm x 150 Coarse Thread, ensuring a robust connection.
  • Stage 8 Locking System: Utilizes a unique locking mechanism that actively prevents bolts from backing out, even under severe conditions.
  • High-Quality Materials: Constructed from premium materials to withstand high temperatures and resist corrosion.
  • Easy Installation: Designed for a straightforward installation process, allowing you to get back on the road or track faster.

Why Choose Kooks Stage 8 Locking Bolts?

Vibrations and thermal cycling can cause standard header bolts to loosen over time, leading to exhaust leaks, reduced performance, and potential damage. The Stage 8 system employs a patented locking mechanism that provides a positive lock, eliminating the need for unreliable locking washers or messy thread-locking compounds. This kit is essential for any Mustang or F-150 owner pushing the limits of their Coyote engine.

Upgrade your exhaust system's reliability with the Kooks Stage 8 Locking Header Bolt Kit. Experience peace of mind knowing your headers are securely fastened. Get yours today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2010-2014 Ford F-150 SVT Raptor
2015-2020 Ford F-150 King Ranch
2015-2020 Ford F-150 Lariat
2015-2020 Ford F-150 Platinum
2015-2020 Ford F-150 XL
2015-2020 Ford F-150 XLT
2015-2020 Ford Mustang Shelby GT350
2015-2020 Ford Mustang Shelby GT350R
2015-2021 Ford Mustang GT
2015-2021 Ford Mustang GT Premium
2019-2020 Ford Mustang Bullitt

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