• AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (True Coilover) - 2000-2004 Porsche Boxster 2.7 (986)
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AST 5100 Series True Coilover Porsche Boxster 2.7 (986) (ACU-P2201S)

AST 5100 Series True Coilover Porsche Boxster 2.7 (986) (ACU-P2201S)

ACU-P2201S

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$3,150.00 USD
$3,780.00 USD $3,150.00 USD
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The AST 5100 Series True Coilover for the Porsche Boxster 2.7 (986) is a high-performance suspension upgrade designed to enhance handling and stability. Featuring inverted, upside-down shock absorber technology, this coilover system is race-proven and offers superior strength and durability compared to standard twin-tube designs. The 5100 Series delivers improved suspension geometry under heavy lateral and braking loads, making it ideal for spirited street driving and track use. The coilovers allow for rebound adjustment with a single knob, enabling precise tuning to suit various driving conditions. Constructed with high-quality materials, these coilovers provide a significant upgrade in ride quality, responsiveness, and overall vehicle control.

Designed specifically for 2000-2004 Porsche Boxster 2.7 models, these coilovers are a direct bolt-on replacement for the factory suspension. They are engineered to optimize performance on both street and track environments, offering adjustable ride height and damping characteristics. Installation is straightforward for those familiar with suspension work, and the kit includes all necessary components for a complete upgrade. Compatible with the Porsche 986 chassis, these coilovers are suitable for enthusiasts seeking improved handling, reduced body roll, and a more aggressive stance. They are ideal for track days, spirited driving, or daily use where enhanced suspension performance is desired.

Overview

The 5100 Series shock absorbers for the 2000-2004 Porsche Boxster 2.7 (986) 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-P2201S
  • 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: Clamp McPherson strut / Rear: Clamp McPherson strut
  • Model Years: 2000-2004
  • Make: Porsche
  • Model: Boxster
  • Chassis: 986
  • 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-P10-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
  • 2000 Porsche Boxster 2.7 (986)
  • 2001 Porsche Boxster 2.7 (986)
  • 2002 Porsche Boxster 2.7 (986)
  • 2003 Porsche Boxster 2.7 (986)
  • 2004 Porsche Boxster 2.7 (986)
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