• AST Suspension 5100 Series Coilovers (Includes Front/Rear Top Mounts) (True Coilover) - 1995-1999 BMW 3 Series 318is Coupe/Sedan (E36)
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AST 5100 Series Coilovers F&R Top Mounts | BMW 3 Series E36 95-99 Coupe/Sedan 318is (ACC-B1105S)

AST 5100 Series Coilovers F&R Top Mounts | BMW 3 Series E36 95-99 Coupe/Sedan 318is (ACC-B1105S)

ACC-B1105S

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The AST 5100 Series Coilovers F&R Top Mounts for BMW 3 Series E36 from 1995 to 1999 are high-performance shock absorbers featuring inverted, upside-down technology. Designed specifically for the 318is coupe and sedan models, these coilovers deliver race-proven durability and superior handling characteristics. The inverted damper design enhances strength and stability, especially under heavy lateral and braking forces encountered during spirited driving or track use. The 5100 Series offers improved suspension geometry and ride quality compared to standard twin-tube shocks, making them an ideal upgrade for enthusiasts seeking enhanced performance, responsiveness, and durability.

These coilovers are engineered for direct fitment on E36 chassis BMW 3 Series vehicles equipped with the 318is engine. They are suitable for street, track, or aggressive driving applications, providing adjustable rebound control to fine-tune handling characteristics. The kit includes top mounts and all necessary hardware for installation, ensuring a secure and precise fit. Designed for performance-oriented drivers, these coilovers help optimize suspension response and stability during demanding driving conditions, making them a versatile upgrade for both daily driving and competitive motorsport use.

Overview

The 5100 Series shock absorbers for the 1995-1999 BMW 3 Series 318is Coupe/Sedan (E36) 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-B1105S
  • 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: McPherson strut / Rear: Eye 2 pin strut
  • Model Years: 1995-1999
  • Make: BMW
  • Model: 3 Series
  • Chassis: E36
  • Spring Kit: Included
  • Top Mounts: Front / Rear Included
  • Front Top Mounts: TMA-B11-A1-20F - Camber adjustable
  • Optional Front Top Mounts: Not Available
  • Rear Top Mounts: TMA-B01-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
  • 1995 BMW 3 Series 318is Coupe/Sedan (E36)
  • 1996 BMW 3 Series 318is Coupe/Sedan (E36)
  • 1997 BMW 3 Series 318is Coupe/Sedan (E36)
  • 1998 BMW 3 Series 318is Coupe/Sedan (E36)
  • 1999 BMW 3 Series 318is Coupe/Sedan (E36)
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