AST Suspension® - 0.4"-2.4" x 0.4"-2.4" 5300 Series Front and Rear Lowering Coilover Kit

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2013 Subaru WRX
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  • No QDC standard included.
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Subaru WRX GR Body Code / GV Body Code 2013, 5300 Series Front and Rear Lowering Coilover Kit with 0.4"-2.4" Front and Rear Body Drop by AST Suspension®. Quantity: Sold as a Kit. AST Suspension Competition set 5300 Shock Absorbers.For the best performance on the track, AST Suspension designed the Competition 3-way adjustable series. The 5300 Series shock absorbers are rebound adjustable in 12 positions on the strut. The highspeed compression is adjustable in 12 positions and the lowspeed compression is adjustable in 14 positions. Both compression adjustments are made using an external canister. All adjusters work completely independent. Many years of technical knowledge, testing and experience has been refined, fettled and brought together to create a perfect balance between the choice of springs and the corresponding damping characteristics. This makes it a versatile product for every customer. The 5300 series shock absorbers are the best solution for every race team. Once installed te shock absorbers are easy to setup, highly reliable and require low maintenance during the season because of the high grade of materials used. All of this together makes the 5300 series shock absorbers a championship winning damper, over and over again. The AST 5300 Suspension is worldwide renowned for its performance at every level.

Notes: No QDC standard included.

AST Suspension


Internal Design: Monotube
Shock Absorber Type: Gas Charged
Adjustment Type: Triple Adjustment
Rebound Adjustment: 12 Clicks
Compression Adjustment: 14 Clicks (Low Speed), 12 Clicks (High Speed)
Coilovers Class: Street, Track, Race, Pro
Reservoir: With External Reservoir
Front Upper Mount Type: 0
Rear Upper Mount Type: 0


  • High end, track ready suspension
  • Rebound, Low & Hi Speed Compression Adjustable ('Triples'), with a remote reservoir
  • Remote reservoirs allow additional travel, heat dissipation and oil/nitrogen gas capacity
  • 44.5mm diameter shaft struts are inverted and offer exceptional strength, which in turn reduces geometry change under corner and braking manoeuvres
  • Aluminum cylinder, threaded body shocks, factory mounting style
  • New low friction seal on all AST dampers
  • Spherical lower "eye" shock mounts
  • Reservoir with hose or piggyback
  • Spherical upper shock mount assemblies
  • Synthetic hydraulic fluid
  • Optional DLC Coated 44,5mm inverted shafts
  • Optional DDP piston (double digressive)
  • Fully serviceable and rebuildable
  • Revalvable for specific characteristics
  • Premium quality, high-performance suspension parts
  • Will help you build a suspension with unique capabilities
  • Used by performance enthusiasts and race teams around the world
  • Race-proven technology for better suspension geometry
  • Improved heavy lateral and braking loads
  • Guaranteed to increase your ride's handling, stability, and control
  • Made exceptionally strong to go the distance and bring you to the winner's lane
  • Suitable for almost any use or application on and off the race track
  • Hand-built in Holland


  • (2) Front Coilover Shock Absorbers
  • (2) Rear Shock Absorbers
  • (4) Front and Rear Coil Springs
  • (2) Snaper Wrench
  • Hardware Kit

How a Monotube design works?

Monotube design is essential for performance. The oil and nitrogen are separated by a floating piston, and allows the use of a larger piston, increasing the damper performance and sensitivity felt by the driver, all this added together produces more grip, gives more control and driver feedback from your vehicle.

What is a rebound adjustment?

Rebound controls the rate of extension of your shock absorber. By changing the rebound you can directly change the characteristics of the vehicle.

Advanced Suspension Technology® (AST) was founded by two motorsport enthusiasts in late 2000. Their technical expertise in suspension development and industrial manufacturing pushed AST to the forefront even in the early stages of the company. Today, the company is globally recognized as a foremost manufacturer of innovative suspension systems and components. AST made its name through unparalleled quality control and manufacturing flexibility, setting it apart from many others in the suspension industry. AST shock absorbers and other exhaust components are products of choice of numerous car manufacturers and racing teams worldwide.

Part Number:


Guarantee and complaints

The products have been manufactured to a high standard and have passed various technical tests and safety tests. In order to preserve the high quality of the products, they must be installed, used, and maintained as per the guidelines of AST as described in the instructions provided together with the product. The incorrect installation, incorrect use, poor maintenance and/or alterations, or repairs carried out by third parties may have a negative effect on the quality of the products. AST is not liable for any loss of quality in the products caused as a result hereof.

AST guarantees the customer that when used normally and correctly, the products are free from defects, with regard to their material or workmanship. In the event that the product is nevertheless defect, the customer who is a consumer may invoke the guarantee. For other customers, a warranty period of two years will apply. In no event shall any warranty apply for products used for abnormal uses, such as motorsport and/or autosport, and all its various disciplines.

In the event of a defect product, it may be returned to AST. It will decide whether it will repair or replace the product or refund the sum paid for it.


AST will never be liable for any indirect loss and/or damage suffered by the customer, including consequential loss, loss of turnover and profit, loss of data and non-material loss and/or damage, relating to or arising from the agreement or the use of the products. Nothing in this agreement shall exclude or limit liability other than as permitted by applicable laws.

Force Majeure

Notwithstanding anything contained in the general conditions and/or agreement, if total or partial performance will be delayed or rendered impossible for AST by virtue of any reason whatsoever beyond its reasonable control (including war, invasion, act of foreign enemy hostilities, civil war or strife, rebellion, strikes, lockout, or other industrial disputes or actions, fire, flood, epidemic, earthquake, explosion, decision of any court or other judicial body of competent jurisdiction, acts of God, acts of governments or other prevailing authorities or defaults of third parties) (“Force Majeure Event”) then such non-performance will be deemed not to constitute a breach of the general conditions and/or agreement. Should any Force Majeure Event continue for more than two months then customer may terminate this agreement with immediate effect.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

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