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  1. UPR 79-04 Mustang Max-Cross Subframe Connectors
    $89.99

    UPR's Extreme Double-Cross Sub-Frame Connectors Improve handling, feel, weight transfer and extend the life of your vehicle by reducing chassis flex and strengthening the flimsy unibody.

    The Extreme Double-Cross Sub-Frame Connectors are the foundation your vehicles Chassis Support system, connecting together the front and rear sub-frames to strengthen the center of the car.

    An added feature of UPR’s Extreme Sub-Frame Connectors is our Unique Double-Cross Design, that reduces twisting action and eliminates the free span of the car by attaching the cross section of the sub-frame connectors to the strongest section of the floorpan.

    All of our Suspension Products are made with the Highest Quality materials and most expensive components. We spare no expense on our products and always stand behind them with our Lifetime warranty that no one else offers.

    » Unfinished
    » 1 Hour Install
    » Weld in Installation
    » 1" x 2" x .083" Mild Steel
    » Ties in the flimsy Mustang Unibody
    » Double Cross Braces ties in Seats to Subframe
    Learn More
  2. Stifflers 94-04 Mustang Stiffening Rail
    $94.95

    More than just a place to put your jack...

    Installed behind the rocker panel pinch weld lip, these rails multi-task by adding strength and stiffness to your Mustangs chassis as well as providing a safe and solid foundation for your jack. Pre-masked areas for welding means no powder coat to grind away, for a quick and easy installation! A must for all track and lowered cars!

    - Manufactured of 1 x 1.5 x .083 rectangular tubing for great strength-to-weight ratio.
    - Increases chassis stiffness and strength for improved handling.
    - Provides a safe, solid and convenient location for your jack.
    - Pre-masked areas for welding require NO removal of powder coat before installation.
    - Supplied with plastic end plugs to help keep moisture out.
    - Industrial grade powder coat for long life, to outlast the vehicle.
    - Added level of safety in event of side impact.
    - Can be used alone or with Stifflers Fully Integrated Technology (FIT)SystemTM.
    Learn More

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