QA1 Tubular K-Member — 1979-1993 Ford Mustang (w/o Engine Mounts)

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SKU: QAPMUK01
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Sale price$528.99 Regular price$531.70
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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 QA1

QA1 engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full QA1 lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

QA1 Tubular K-Member for 1979-1993 Ford Mustangs

Transform your 1979-1993 Ford Mustang with the QA1 Tubular K-Member, designed to significantly reduce weight and enhance performance. This direct bolt-in replacement for the factory K-member offers substantial benefits for street performance, autocross, Pro-Touring, and drag racing applications. Weighing in at just 25 lbs, it's over 50% lighter than the stock K-member, contributing to improved acceleration, braking, and overall handling dynamics.

Superior Design and Benefits:

  • Significant Weight Savings: Constructed from high-quality, American-made HSLA steel, this tubular design sheds considerable weight, improving your Mustang's power-to-weight ratio.
  • Increased Header Clearance: The optimized tubular design provides ample room for larger aftermarket headers, making engine swaps and exhaust upgrades easier and more efficient.
  • Improved Suspension Geometry: QA1's K-member maintains optimal anti-dive geometry and minimizes bump steer, even on lowered vehicles, ensuring a more stable and predictable ride.
  • Direct Bolt-On Installation: Designed to integrate seamlessly with factory components, this K-member requires no modifications for installation and retains the factory wheelbase, ensuring no changes to wheel or tire fitment.
  • Versatile Application: Ideal for a wide range of performance builds, from daily drivers seeking better handling to dedicated race cars demanding weight reduction and improved chassis performance.

This QA1 K-member is engineered for enthusiasts who demand the best in performance and weight savings. While engine mounts are sold separately, this K-member is designed to work with various engine configurations. For optimal results and a complete suspension upgrade, QA1 strongly recommends pairing this K-member with their tubular control arms. Experience the difference QA1 engineering makes for your Mustang's performance.

Fits: 1979-1993 Ford Mustang models (engine mounts sold separately).

Vehicle Fitment

Years Make Model Trim
1979-1981 Ford Mustang Base
1979-1981 Ford Mustang Ghia
1981 Ford Mustang Cobra
1982-1983 Ford Mustang GL
1982-1983 Ford Mustang GLX
1982-1984 Ford Mustang L
1982-1993 Ford Mustang GT
1983 Ford Mustang Turbo GT
1984 Ford Mustang GT-350 20th Anniversary
1984-1986 Ford Mustang SVO
1993 Ford Mustang SVT Cobra
1993 Ford Mustang SVT Cobra R

Product Details

Product Description
Part Numbers
Sizing & Fit

About QA1

QA1 engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full QA1 lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

QA1 Tubular K-Member for 1979-1993 Ford Mustangs

Transform your 1979-1993 Ford Mustang with the QA1 Tubular K-Member, designed to significantly reduce weight and enhance performance. This direct bolt-in replacement for the factory K-member offers substantial benefits for street performance, autocross, Pro-Touring, and drag racing applications. Weighing in at just 25 lbs, it's over 50% lighter than the stock K-member, contributing to improved acceleration, braking, and overall handling dynamics.

Superior Design and Benefits:

  • Significant Weight Savings: Constructed from high-quality, American-made HSLA steel, this tubular design sheds considerable weight, improving your Mustang's power-to-weight ratio.
  • Increased Header Clearance: The optimized tubular design provides ample room for larger aftermarket headers, making engine swaps and exhaust upgrades easier and more efficient.
  • Improved Suspension Geometry: QA1's K-member maintains optimal anti-dive geometry and minimizes bump steer, even on lowered vehicles, ensuring a more stable and predictable ride.
  • Direct Bolt-On Installation: Designed to integrate seamlessly with factory components, this K-member requires no modifications for installation and retains the factory wheelbase, ensuring no changes to wheel or tire fitment.
  • Versatile Application: Ideal for a wide range of performance builds, from daily drivers seeking better handling to dedicated race cars demanding weight reduction and improved chassis performance.

This QA1 K-member is engineered for enthusiasts who demand the best in performance and weight savings. While engine mounts are sold separately, this K-member is designed to work with various engine configurations. For optimal results and a complete suspension upgrade, QA1 strongly recommends pairing this K-member with their tubular control arms. Experience the difference QA1 engineering makes for your Mustang's performance.

Fits: 1979-1993 Ford Mustang models (engine mounts sold separately).

Vehicle Fitment

Years Make Model Trim
1979-1981 Ford Mustang Base
1979-1981 Ford Mustang Ghia
1981 Ford Mustang Cobra
1982-1983 Ford Mustang GL
1982-1983 Ford Mustang GLX
1982-1984 Ford Mustang L
1982-1993 Ford Mustang GT
1983 Ford Mustang Turbo GT
1984 Ford Mustang GT-350 20th Anniversary
1984-1986 Ford Mustang SVO
1993 Ford Mustang SVT Cobra
1993 Ford Mustang SVT Cobra R

Product Details

Product Description

About QA1

QA1 engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full QA1 lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

QA1 Tubular K-Member for 1979-1993 Ford Mustangs

Transform your 1979-1993 Ford Mustang with the QA1 Tubular K-Member, designed to significantly reduce weight and enhance performance. This direct bolt-in replacement for the factory K-member offers substantial benefits for street performance, autocross, Pro-Touring, and drag racing applications. Weighing in at just 25 lbs, it's over 50% lighter than the stock K-member, contributing to improved acceleration, braking, and overall handling dynamics.

Superior Design and Benefits:

  • Significant Weight Savings: Constructed from high-quality, American-made HSLA steel, this tubular design sheds considerable weight, improving your Mustang's power-to-weight ratio.
  • Increased Header Clearance: The optimized tubular design provides ample room for larger aftermarket headers, making engine swaps and exhaust upgrades easier and more efficient.
  • Improved Suspension Geometry: QA1's K-member maintains optimal anti-dive geometry and minimizes bump steer, even on lowered vehicles, ensuring a more stable and predictable ride.
  • Direct Bolt-On Installation: Designed to integrate seamlessly with factory components, this K-member requires no modifications for installation and retains the factory wheelbase, ensuring no changes to wheel or tire fitment.
  • Versatile Application: Ideal for a wide range of performance builds, from daily drivers seeking better handling to dedicated race cars demanding weight reduction and improved chassis performance.

This QA1 K-member is engineered for enthusiasts who demand the best in performance and weight savings. While engine mounts are sold separately, this K-member is designed to work with various engine configurations. For optimal results and a complete suspension upgrade, QA1 strongly recommends pairing this K-member with their tubular control arms. Experience the difference QA1 engineering makes for your Mustang's performance.

Fits: 1979-1993 Ford Mustang models (engine mounts sold separately).

Vehicle Fitment

Years Make Model Trim
1979-1981 Ford Mustang Base
1979-1981 Ford Mustang Ghia
1981 Ford Mustang Cobra
1982-1983 Ford Mustang GL
1982-1983 Ford Mustang GLX
1982-1984 Ford Mustang L
1982-1993 Ford Mustang GT
1983 Ford Mustang Turbo GT
1984 Ford Mustang GT-350 20th Anniversary
1984-1986 Ford Mustang SVO
1993 Ford Mustang SVT Cobra
1993 Ford Mustang SVT Cobra R

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