Stock Mount Struts

QA1's M Series struts have a unique inverted design, in which a cartridge is inserted into the strut housing and acts like the piston rod. This drastically increases the strength of the strut, providing superior steering control and keeping the tires in correct alignment on all types of track conditions.

The cartridge is also revalveable and interchangeable, making it easy to change valve settings without needing to alter caster or camber. Racers can easily revalve a cartridge to the settings they prefer, or they can buy individual cartridges with different valvings and simply switch out the cartridge without removing the strut from the car.

  1. M Series Interchangeable Cartridge Strut - QA1 Suspensions

    M Series Interchangeable Cartridge Struts

    $349.95

    QA1’s M Series struts for '79-'04 Mustangs feature a unique inverted design, which is stronger and more durable than traditional strut designs.

  2. M Series Interchangeable Cartridge - QA1 Suspensions

    M Series Interchangeable Cartridges

    $224.95

    Once you have the complete M Series strut assembly for '79-'04 Mustangs, you can order additional cartridges for more valving options.

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