• AST Suspension 5100 Series Coilovers (Includes Front/Rear Top Mounts) (True Coilover) - 2008-2013 Subaru Impreza WRX 2.5 (GE/GH/GR/GV PCD 5x100)
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AST 5100 Series Coilovers | Subaru Impreza WRX (08-13) (ACC-S6209S)

AST 5100 Series Coilovers | Subaru Impreza WRX (08-13) (ACC-S6209S)

ACC-S6209S

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The AST 5100 Series Coilovers for the Subaru Impreza WRX (2008-2013) are high-performance suspension components designed to enhance handling and stability. Featuring inverted, upside-down shock absorber technology, these coilovers are race-proven and deliver superior strength and durability compared to standard twin-tube designs. The 5100 Series offers improved suspension geometry under heavy lateral and braking loads, making them ideal for spirited driving on both street and track. The adjustable rebound damping allows for fine-tuning ride characteristics, ensuring optimal performance and comfort. Constructed with high-quality materials, these coilovers are engineered to withstand demanding driving conditions and provide consistent, reliable performance.

Designed specifically for 2008-2013 Subaru Impreza WRX models with a 2.5-liter engine and 5x100 bolt pattern, these coilovers are a direct bolt-on upgrade that replaces factory suspension components. They are suitable for enthusiasts seeking improved handling, cornering, and ride height adjustment. The kit includes coilover units with adjustable ride height and rebound damping, enabling tailored suspension settings for various driving styles and conditions. These coilovers are ideal for street use, track days, or aggressive driving, offering a significant upgrade over stock suspension for enhanced control and performance. Proper installation requires basic tools and mechanical knowledge, and they are compatible with the specified vehicle models and chassis codes.

Overview

The 5100 Series shock absorbers for the 2008-2013 Subaru Impreza WRX 2.5 (GE/GH/GR/GV PCD 5x100) utilize inverted / upside down technology. The inverted design is race proven technology and produces an extremely strong damper, providing better suspension geometry under heavy lateral and braking loads as seen in a road and track environment.

The 5100 Series shock absorbers give your car a better performance than the standard twin tube design. With the 5100 Series suspension you can adjust rebound with one knob. The adjust platform allows you to adjust the ride height of your car. AST suspension shock bodies are specially designed to keep maximum stroke, even with a lower ride height.

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.

Features

  • Floating piston design with high pressure nitrogen means no cavitation around the piston.
  • 14mm diameter internal shaft.
  • 44.5 mm diameter shaft struts, inverted.
  • Steel cylinder body shocks, inverted.
  • High end, track ready suspension.
  • Rebound adjustable ('Singles').
  • Low friction seal.
  • Adjuster knobs permanently mounted on the dampers.
  • Designed to use OEM top mounts.
  • Rubber bushings for 'eye' shock mounts.
  • Includes springs.
  • Rebuildable.
  • Optional spherical top mounts.
  • Optional DLC (diamond like carbon) coated shafts.
  • Optional DDP (double digressive piston).
    • Double Digressive Pistons are recommended for use on the non-driven wheels.
    • 4WD/FWD vehicles: DD pistons for both rear axle struts/shocks.
    • RWD vehicles: DD pistons for both front axle struts/shocks.
  • Optional custom valving.
Specifications
  • Part Number: ACC-S6209S
  • Product: AST 5100 Series
  • Adjustment: 1 Way
  • System: Coil Over
  • Product Note: True Coilover
  • Front/Rear Ratio: Front = 60% / Rear = 40%
  • Strut/Shock Type: Front: Bracket McPherson strut / Rear: Eye 2 pin strut
  • Model Years: 2008-2013
  • Make: Subaru
  • Model: Impreza WRX
  • Chassis: GE/GH/GR/GV PCD 5x100
  • Spring Kit: Included
  • Top Mounts: Front / Rear Included
  • Front Top Mounts: TMA-S08-B1-20F - Camber adjustable (30mm raised into body)
  • Optional Front Top Mounts: TMA-S08-A1-20F - Camber adjustable
  • Rear Top Mounts: TMA-S08-B1-30R - Solid top mounts (no camber adjustment)
  • Adjustable Front Droplinks Available? No
  • Adjustable Front Droplinks Required? No
  • Adjustable Rear Droplinks Available? No
  • Adjustable Rear Droplinks Required? No
  • DDP Pistons Included? No
  • DDP Pistons Available? Yes
  • DLC Coated Shafts Included? No
  • DLC Coated Shafts Available? Yes
  • QDC Included? No
  • TUV Approved?
  • Comments: Works with OE top mounts.
Vehicle Fitment
  • 2008 Subaru Impreza WRX 2.5 (GE/GH/GR/GV PCD 5x100)
  • 2009 Subaru Impreza WRX 2.5 (GE/GH/GR/GV PCD 5x100)
  • 2010 Subaru Impreza WRX 2.5 (GE/GH/GR/GV PCD 5x100)
  • 2011 Subaru Impreza WRX 2.5 (GE/GH/GR/GV PCD 5x100)
  • 2012 Subaru Impreza WRX 2.5 (GE/GH/GR/GV PCD 5x100)
  • 2013 Subaru Impreza WRX 2.5 (GE/GH/GR/GV PCD 5x100)
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