AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (Non Inverted) - 2009-2012 BMW 3 Series 316d (E9X)

Name: AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (Non Inverted) - 2009-2012 BMW 3 Series 316d (E9X)
Brand: AST Suspension
Price: 2581.44 USD
Availability: InStock

$2,581.44

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Vehicle Fitment

2009 BMW 3 Series 316d (E9X)
2010 BMW 3 Series 316d (E9X)
2011 BMW 3 Series 316d (E9X)
2012 BMW 3 Series 316d (E9X)

Specifications

Part Number: ACS-B1601S
Product: AST 5100 Series
Adjustment: 1 Way
System: Coil Over
Product Note: Non Inverted, Old 4100 Series
Front/Rear Ratio: Front = 60% / Rear = 40%
Strut/Shock Type: Front: Clamp McPherson strut / Rear: Pin 2 pin strut
Model Years: 2009-2012
Make: BMW
Model: 3 Series
Chassis: E9X
Spring Kit: Included
Top Mounts: Front / Rear Optional (If Available)
Optional 1 Front Top Mounts: TMA-B01-A1-20F - Camber adjustable
Optional 2 Front Top Mounts: Not Available
Optional Rear Top Mounts: Not Available
Adjustable Front Droplinks Available? Part Number: DLA-BMW2-S
Adjustable Front Droplinks Required? Yes
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.

The 5100 Series shock absorbers for the 2009-2012 BMW 3 Series 316d (E9X) utilize non-inverted / high performance monotube technology. In the past, these were known as the 4100 series. Monotube design shocks absorbers give your car a better performance than the standard twin tube design, the gas pressure is separated by a floating piston, and eliminates cavitation and airation within the oil chamber.

The 5100 Series shocks allow rebound adjustment with one knob. The adjust platform allows the user 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.
22mm / 14mm diameter shaft struts, non-inverted
Steel cylinder body shocks, non-inverted.
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.