• AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (True Coilover) - 1998-2000 Subaru Impreza WRX 2.0 GT Turbo 4WD (GC/GF PCD 5x100)
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AST 5100 Series Coilovers Subaru Impreza GC/GF 98-00 | 2.0 GT Turbo (ACU-S6202S)

AST 5100 Series Coilovers Subaru Impreza GC/GF 98-00 | 2.0 GT Turbo (ACU-S6202S)

ACU-S6202S

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$3,683.33 USD
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The AST 5100 Series Coilovers for Subaru Impreza GC/GF 98-00 are high-performance suspension components designed to enhance handling and stability. Featuring inverted shock absorber technology, these coilovers are race-proven and deliver increased strength and durability. The inverted design improves suspension geometry under heavy lateral and braking forces, making them ideal for spirited driving on both street and track. Built with precision and quality materials, the 5100 Series provides superior damping performance compared to standard twin-tube shocks, allowing for improved control and ride quality. Adjustable features enable fine-tuning of ride height and damping settings to suit various driving conditions and preferences, making them a versatile upgrade for performance enthusiasts.

These coilovers are specifically engineered for 1998-2000 Subaru Impreza models equipped with the 2.0 GT Turbo engine and 5x100 bolt pattern. They are compatible with GC and GF chassis codes and are designed as direct bolt-on replacements for factory struts. Suitable for street, track, or light rally use, these coilovers help optimize suspension response and handling dynamics. Installation involves replacing existing shocks and springs, with included components ensuring a straightforward upgrade process. Whether for daily driving or performance tuning, these coilovers provide a robust and adjustable solution to improve your vehicle’s suspension performance.

Overview

The 5100 Series shock absorbers for the 1998-2000 Subaru Impreza WRX 2.0 GT Turbo 4WD (GC/GF 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: ACU-S6202S
  • Product: AST 5100 Series
  • Adjustment: 1 Way
  • System: Coil Over
  • Product Note: True Coilover
  • Front/Rear Ratio: Front = 50% / Rear = 50%
  • Strut/Shock Type: Front: Bracket McPherson strut / Rear: Bracket McPherson strut
  • Model Years: 1998-2000
  • Make: Subaru
  • Model: Impreza WRX
  • Chassis: GC/GF PCD 5x100
  • Spring Kit: Included
  • Top Mounts: Front / Rear Optional (If Available)
  • Optional 1 Front Top Mounts: TMA-S01-A1-20F - Camber adjustable
  • Optional 2 Front Top Mounts: Not Available
  • Optional Rear Top Mounts: TMA-S02-A1-30R - Camber adjustable
  • 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
  • 1998 Subaru Impreza WRX 2.0 GT Turbo 4WD (GC/GF PCD 5x100)
  • 1999 Subaru Impreza WRX 2.0 GT Turbo 4WD (GC/GF PCD 5x100)
  • 2000 Subaru Impreza WRX 2.0 GT Turbo 4WD (GC/GF PCD 5x100)
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