Product Details
These AST Suspension 5300 Series 3-Way coilovers fit the 2007-2011 BMW M3 4.0 V8 RWD (E90/E92/E93). AST Suspension designed the Competition 3-Way adjustable series for track use on the E90/E92/E93 M3. The 5300 Series shock absorbers are rebound adjustable in 12 positions on the strut.
The high speed compression is adjustable in 12 positions and the low speed compression is adjustable in 14 positions. Both compression adjustments are made using an external canister. All adjusters work completely independent.
The AST shock absorbers are easy to set up and need little maintenance during the season.
Standard Features
- High end, track ready suspension.
- Rebound, Low & Hi Speed Compression Adjustable ('Triples'), with a remote reservoir.
- Remote reservoirs allow additional travel, heat dissipation and oil/nitrogen gas capacity.
- 4.5mm diameter shaft struts are inverted and offer exceptional strength, which in turn reduces geometry change under corner and braking maneuvers.
- Aluminum cylinder, threaded body shocks, factory mounting style
- New low friction seal on all AST dampers.
- Spherical lower eye shock mounts.
- Reservoir with hose or piggyback (piggyback examples: 2008 STI, BMW E36 rears).
- Spherical upper shock mount assemblies.
- Synthetic hydraulic fluid.
- Optional DLC (diamond like carbon) 44.5mm inverted shafts.
- Optional DDP piston (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.
- Fully serviceable and rebuildable.
- Revalveable for specific characteristics.
Specifications
| Part Number | RAC-B1603SD |
| Part Name | 5300 Series Coilovers |
| Vehicle | 2007-2011 BMW M3 4.0 V8 RWD |
| Chassis Code | E90/E92/E93 |
| Ride-Height Adjustable | Yes |
| Damping Adjustment | 3-Way |
| Adjustable Droplinks Available - Rear | No |
| Adjustable Droplinks Required - Front | Yes |
| Adjustable Droplinks Required - Rear | No |
| DDP Pistons Available | Yes |
| DDP Pistons Included | No |
| DLC Coated Shafts Available | Yes |
| DLC Coated Shafts Included | No |
| QDC Included | No |
| Ratio - Front | 60% |
| Ratio - Rear | 40% |
| Top Mounts - Front | Included |
| Top Mounts - Rear | Included |
| Strut/Shock Type - Rear | Eye 2 Pin Strut |
| Spring Kit Include | Yes |
| Strut/Shock Type - Front | Clamp McPherson Strut |
| Quantity | Full Set (Front & Rear) |
| Notes | - |