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All-in-one Qa1 Ds509 Proma Star Single Adjustable Shock Massive 30% Savings [kUVtoE9x]

$49.99 $159.99 -69%

QA1 designed their DS509 Proma Star Single Adjustable Shock to instantly upgrade ride quality as well as performance. With 18 clicks of adjustment on one knob, they are the perfect choice for drag racing in addition to street cars!The shock and inclu

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QA1 designed their DS509 Proma Star Single Adjustable Shock to instantly upgrade ride quality as well as performance. With 18 clicks of adjustment on one knob, they are the perfect choice for drag racing in addition to street cars!

The shock and included hardware kit provide quick and easy ride height adjustability to get the perfect stance. Just add a 2.5” spring of the appropriate length as well as spring rate to get rolling. Manufactured from lightweight billet aluminum, these shocks provide exactly the ride you want, high performance handling as well as great looks!

Made in the USA, QA1 shocks are 100% dyno tested and serialized before leaving their Minnesota factory. The lightweight billet aluminum body shocks offer easy, bolt-in installation. QA1 shocks are serviceable as well as rebuildable by QA1 authorized service centers.

All-in-one Qa1 Ds509 Proma Star Single Adjustable Shock Massive 30% Savings [kUVtoE9x] Features:

  • Fits Ford Mustang 1979-2004
  • Shock Body Material: Aluminum
  • Shock Body Finish: Clear Anodized
  • Number of Valving Selections: 18
  • Internal Design: Twin-Tube
  • Extended Length: 16.875 in.
  • Compressed Length: 11.63 in.
  • Upper Mount: Eyelet
  • Lower Mount: Bearing
  • Bushing Material: Polyurethane
  • Bushing Color: Black
  • Body Diameter: 2.000 in.
  • Recommended Minimum Spring Length: 12.000 in.
  • Recommended Spring Diameter: 2.500 in.
  • Hardware Included: Yes
  • Coilover Springs Included: No
  • Gas Charged: No
  • Adjustable Mounting Bracket Included: No
  • Made in the USA!!!
  • Quantity: Sold individually

QA1 specializes in high-performance suspension components, including shock absorbers, rod ends, spherical bearings, struts, springs, ball joints as well as other related items. With products to fit a wide variety of applications, they have solutions for the circle track, drag racing, street performance, and street rodding markets.

What Our Customers Say

January 2, 2026

Absolutely no complaints!

This is an awesomely and a very, so well-made product.

- Taliesin V..

January 2, 2026

Absolutely no complaints!

This works so well, it is a real, absolute joy to use.

- Padrig S..

January 2, 2026

Absolutely no complaints!

This is a fantastic, very, very, very, very high-quality buy.

- Math C..

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