Fitment
For Holden Commodore Third generation 1997-2007
For Holden Commodore VT / VT II Sedan Wagon 1997-2000
For Holden VX Commodore Berlina Calais Sedan Wagon 2000-2002
For Holden VY Commodore Sedan Wagon 2002-2004
For Holden VZ Commodore Sedan Wagon 2004-2007

Specifications
Damping adjustable Not available
Camber adjustable Not available
Shock Type Twin Tube
Height adjustable Yes, lowering 25-75mm depending on the vehicle models
Front Spring Rate 7kg/mm (392 lbs/in)
Rear Spring Rate 13 kg/mm (728 lbs/in)
Spring Preload 7-10 mm
Spring length Front 200 mm
Spring length Rear 160 mm
Color Black body with Black spring
Weight 24800 g

Feature
Self-design structure and new manufacturing system to give more customers good coil-overs without breaking the bank.
Height adjustable---lower your car 25-75mm (depending on vehicle models) to get a performance ride
Independent Ride Height and Spring Pre-load Adjustments
Twin-Tube System for Comfortable Ride on Streets
Coated finish to avoid rust
Heavy Duty Steel Lower Mounts
Simple install,  easy to adjust.

Package Included
1 x Set of Coilover Spring Kit (2 Front + 2 Rear)
1 x Pair of wrenches for height adjustment

Note
All modifications must be installed by licensed mechanics and in compliance with your local modification regulations.
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.
Impact wrench is prohibited during the installation, it will loosen or damage the product.
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)
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.