• AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (True Coilover) - 1997-2005 Porsche 911 GT2/GT3 3.6 NA / Turbo 2WD (996)
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AST 5100 Series Coilovers Porsche 911 GT3/GT2 (996) 04-05 | (ACU-P2203S)

AST 5100 Series Coilovers Porsche 911 GT3/GT2 (996) 04-05 | (ACU-P2203S)

ACU-P2203S

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The AST 5100 Series Coilovers for the Porsche 911 GT3 and GT2 (996) from 2004 to 2005 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 inverted design improves suspension geometry under heavy lateral and braking loads, making them ideal for both street and track use. The 5100 Series coilovers allow for adjustable rebound and compression settings, enabling precise tuning for various driving conditions. Constructed with high-quality materials, these coilovers provide improved damping performance, better control, and a more responsive driving experience.

Designed specifically for 1997-2005 Porsche 911 GT2 and GT3 models with a 3.6 NA or Turbo engine, these coilovers are a direct replacement for the factory suspension. They are engineered to optimize handling and cornering capabilities, whether on the street or the track. Installation is straightforward for those familiar with suspension upgrades, and the kit includes all necessary components for a complete upgrade. Suitable for enthusiasts seeking improved performance and adjustable ride height, these coilovers are an excellent choice for track days, spirited driving, or enhancing everyday driving dynamics.

Overview

The 5100 Series shock absorbers for the 1997-2005 Porsche 911 GT2/GT3 3.6 NA / Turbo 2WD (996) 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-P2203S
  • 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: Clamp McPherson strut / Rear: Eye 2 pin strut
  • Model Years: 1997-2005
  • Make: Porsche
  • Model: 911
  • Chassis: 996
  • Spring Kit: Included
  • Top Mounts: Front / Rear Optional (If Available)
  • Optional 1 Front Top Mounts: TMA-P07-A1-20F - Camber adjustable
  • Optional 2 Front Top Mounts: Not Available
  • Optional Rear Top Mounts: TMA-P11-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
  • 1997 Porsche 911 GT2/GT3 3.6 NA / Turbo 2WD (996)
  • 1998 Porsche 911 GT2/GT3 3.6 NA / Turbo 2WD (996)
  • 1999 Porsche 911 GT2/GT3 3.6 NA / Turbo 2WD (996)
  • 2000 Porsche 911 GT2/GT3 3.6 NA / Turbo 2WD (996)
  • 2001 Porsche 911 GT2/GT3 3.6 NA / Turbo 2WD (996)
  • 2002 Porsche 911 GT2/GT3 3.6 NA / Turbo 2WD (996)
  • 2003 Porsche 911 GT2/GT3 3.6 NA / Turbo 2WD (996)
  • 2004 Porsche 911 GT2/GT3 3.6 NA / Turbo 2WD (996)
  • 2005 Porsche 911 GT2/GT3 3.6 NA / Turbo 2WD (996)
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