• AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (True Coilover) - 2007-2012 Porsche 911 GT2/GT3 3.6/3.8 2WD (997)
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AST 5100 Series Coilovers | Porsche 911 GT2/GT3 3.6/3.8 (07-12) (ACU-P2209S)

AST 5100 Series Coilovers | Porsche 911 GT2/GT3 3.6/3.8 (07-12) (ACU-P2209S)

ACU-P2209S

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The AST 5100 Series Coilovers are high-performance shock absorbers designed specifically for the 2007-2012 Porsche 911 GT2 and GT3 models with 3.6 and 3.8-liter engines. Featuring inverted, upside-down technology, these coilovers are race-proven and engineered to deliver superior strength and durability. They provide enhanced suspension geometry under heavy lateral and braking forces, making them ideal for both street and track use. The 5100 Series coilovers improve handling, stability, and ride quality by offering adjustable rebound settings, allowing for precise tuning to match driving preferences and conditions. Constructed with high-quality materials, these coilovers are built to withstand demanding performance environments and provide consistent, reliable damping performance.

Designed to fit 2007-2012 Porsche 911 GT2 and GT3 models with 3.6/3.8 engines, these coilovers serve as a direct upgrade or replacement for the factory suspension components. They are suitable for enthusiasts seeking improved cornering, reduced body roll, and enhanced overall vehicle control during spirited driving or track days. Installation is typically bolt-on, with the kit including the necessary shock absorbers and mounting hardware. These coilovers are ideal for track enthusiasts, performance drivers, or anyone looking to optimize their Porsche’s suspension for aggressive driving and improved handling dynamics.

Overview

The 5100 Series shock absorbers for the 2007-2012 Porsche 911 GT2/GT3 3.6/3.8 2WD (997) 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-P2209S
  • 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: Fork 2 pin strut
  • Model Years: 2007-2012
  • Make: Porsche
  • Model: 911
  • Chassis: 997
  • 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: TMA-P12-B1-20F - Solid top mounts (no camber adjustment)
  • 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
  • 2007 Porsche 911 GT2/GT3 3.6/3.8 2WD (997)
  • 2008 Porsche 911 GT2/GT3 3.6/3.8 2WD (997)
  • 2009 Porsche 911 GT2/GT3 3.6/3.8 2WD (997)
  • 2010 Porsche 911 GT2/GT3 3.6/3.8 2WD (997)
  • 2011 Porsche 911 GT2/GT3 3.6/3.8 2WD (997)
  • 2012 Porsche 911 GT2/GT3 3.6/3.8 2WD (997)
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