BFCO coil-overs are designed as entry-level for street use. It features height adjustable and adjustable camber plates (applicable for some vehicles),  which offer you a lowered stance, and improved performance for your daily use vehicle.

Application:

For BMW Z4 Roadster (E85) (2003-2009)  2.0 i, 3.0 i ,2.5 i, 3.0 si, 2.2 i, 2.5 si

For BMW Z4 Coupe (E86) (2006-2009) 3.0 si

Specification:

Height adjustable: Yes, lowering 1-3 inches depending on the vehicle models

Damping adjustable: Not available

Camber adjustable: Not available

Spring Rate Front: 10 kg/mm (560 lbs/in)

Spring Rate Rear: 8 kg/mm (448 lbs/in)

Spring length Front: 180 mm

Spring length Rear: 170 mm

Spring Preload advised: 7-10 mm

Package included

2x front coil-overs
2x rear  coil-overs
2x sway bar
2x C spanners

Feature:
1. Self-design structure and new manufacturing system to give more customers good coil-overs without breaking the bank.
2. Full-length height adjustable---lower your car 1-3 inches (depending on vehicle models) to get a performance ride
3. Independent Ride Height and Spring Pre-load Adjustments
4. Twin-Tube System for Comfortable Ride on Streets
5. Coated finish to avoid rust
6. Heavy Duty Steel Lower Mounts
7. Simple install,  easy to adjust.

Notice :
1. All modifications must be installed by licensed mechanics and in compliance with your local modification regulations.
2. Please ensure all components are tightened with correct torque specifications (which can be found in the vehicle service manual)before and after installation. Any loose nuts, bolts, or locks will cause noise. Do check and tighten before serious problems happen.
3. Impact wrench is prohibited during the installation, it will loosen or damage the product.
4. Examine the clearance between tires and suspension. ( The minimum clearance should be 4mm, otherwise, you need to add wheel spacers. Caution: It is not sufficient with torsion beam trailing arm axles)
5. We suggest regular maintenance for the coil-over, spray with some WD40 every 3-4 months will keep it smooth and clean, which helps to extend the lifetime.