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  1. Stifflers WEB-M01 1979-2004 Mustang Web Brace
    $284.95

    The Web brace ties together our full length subframe connectors and stiffening rails, creating the ultimate in chassis stiffening!

    As a key component of Stifflers Fully Integrated Technology (FIT)SystemTM, it provides a structurally engineered network (Web) of additional strength and stiffness, unmatched in todays market.

    Installation is easy with our Slide-2-SizeTM mounting brackets. No loss of ground clearance and will work with most other manufacturers rectangular full length subframe connectors too!

    - Slide-2-SizeTM mounting system makes installation nearly effortless; simply slide bracket into place and weld, for a custom fit every time.
    - Design optimized using CAD/CAE software combined with real-world test data.
    - Manufactured of 1 x .065 tubing to maximize stiffness and strength while reducing weight.
    - TIG welded for superior strength
    - Considerably increases side impact safety.
    - Works with any aftermarket square or rectangular full-length subframe connectors.
    - Engineered for no loss of ground clearance and no need to relocate fuel or brake lines.
    - No floors to cut or interior to remove.
    - Pre-masked areas for welding require NO removal of powder coat before installation, for significant time savings!
    - Industrial grade powder coat for long life, to outlast the vehicle.
    - Not a kit, comes complete and ready to install.
    - A key component of Stifflers Fully Integrated Technology (FIT)SystemTM.
    Learn More
  2. Stifflers 79-04 Mustang Lower Chassis Brace (Aftermarket K Member)
    $189.95

    Stifflers' lower chassis brace dramatically increases the strength and stiffness of the front chassis area and Aftermarket K-members.

    This additional stiffness helps to maintain correct front suspension geometry while under load by minimizing flexing. The result is tighter steering response and more predictable handling under cornering and braking.

    - Manufactured of 1 x .083 tubing to maximize stiffness and strength while reducing weight.
    - Design optimized using CAD/CAE software combined with real-world test data.
    - Industrial grade powder coat for long life, to outlast the vehicle.
    - Updated design will now work with aftermarket long tube headers.

    Combine with our Spider Brace to completely integrate the front and rear chassis sections for unprecedented car control!

    Learn More
  3. Stifflers 96-04 Mustang Lower Chassis Brace
    $119.95

    Stifflers' lower chassis brace dramatically increases the strength and stiffness of the front chassis area and factory K-member.

    This additional stiffness helps to maintain correct front suspension geometry while under load by minimizing flexing. The result is tighter steering response and more predictable handling under cornering and braking.

    - Manufactured of 1 x .083 tubing to maximize stiffness and strength while reducing weight.
    - Design optimized using CAD/CAE software combined with real-world test data.
    - Industrial grade powder coat for long life, to outlast the vehicle.

    Combine with our Spider Brace to completely integrate the front and rear chassis sections for unprecedented car control!

    Learn More
  4. Stifflers 99-04 Mustang Spider Brace
    $234.95

    Don't suffer any longer with limp front frame rails, put the Spider to work for you and GET STIFF!

    Finally ... a way to stiffen your front frame rails without installing a 12pt-cage or converting to a tube chassis! This one-of-a-kind brace works with our Lower Chassis brace to completely integrate the K-member and subframe system, eliminating unwanted movement of the front frame rails caused by launching, cornering and braking. This patent pending system acts as a lower frame rail to greatly increase front end rigidity and transfers suspension loads to the strongest part of the car, the subframe system.

    - Dramatically increases front end rigidity by acting as a lower front frame rail.
    - Eliminates unwanted movement of the front frame rails.
    - Transfers front suspension loads to the subframe system.
    - Improves braking performance.
    - Decreases weight transfer response time.
    - Improves steering stability and predictability.
    - Four wheel alignment (front-to-rear) remains consistent.
    - Reduces interior vibration and noise.
    - Can be used alone or with Stifflers Fully Integrated Technology (FIT)System.
    Learn More
  5. Stifflers 79-98 Mustang Spider Brace
    $234.95

    Don't suffer any longer with limp front frame rails, put the Spider to work for you and GET STIFF!

    Finally ... a way to stiffen your front frame rails without installing a 12pt-cage or converting to a tube chassis! This one-of-a-kind brace works with our Lower Chassis brace to completely integrate the K-member and subframe system, eliminating unwanted movement of the front frame rails caused by launching, cornering and braking. This patent pending system acts as a lower frame rail to greatly increase front end rigidity and transfers suspension loads to the strongest part of the car, the subframe system.

    - Dramatically increases front end rigidity by acting as a lower front frame rail.
    - Eliminates unwanted movement of the front frame rails.
    - Transfers front suspension loads to the subframe system.
    - Improves braking performance.
    - Decreases weight transfer response time.
    - Improves steering stability and predictability.
    - Four wheel alignment (front-to-rear) remains consistent.
    - Reduces interior vibration and noise.
    - Can be used alone or with Stifflers Fully Integrated Technology (FIT)SystemTM.
    Learn More

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