ApplicationCompatible for BMW 320i 01-05Compatible for BMW 323i 98-00Compatible for BMW 325i 01-05Compatible for BMW 328i 98-00Compatible for BMW 330i 01-06(Compatible for BMW E46 3-Series Models, and will not fit for M3)SpecificationQuantity: 2 piece front + 2 pieces rearFront Spring Rate: 8 kg/mm (448 lbs/in)Rear Spring Rate: 7 kg/mm (392 lbs/in)Color: GrayAdjustable damper: 24 ways adjustable damper forceAdjustable height: YesAdjustable camber plate: Yes(front only),with pillow ballAdjustable pre-load spring tension. Advise professional installation.Warranty: one year warranty for any manufacturing defectFeatures- Able to lower ride height by 1''-3''; allows user to have a more aggressive stance.- Coilovers are 24-way adjustable. Rebound and Dampening adjustment which allows the user the ability to dial in your coilovers to any driving needs. The user can enjoy a comfortable riding experience in all road conditions.- Pillow ball top mount for sharpening steering response.- Twin-Tube Shock design is used for low internal frictional resistance in order to increase efficiency and keep shock temps low.- Height adjustment does not sacrifice damper stroke length.- These coilovers are able to have their height adjusted without being taken out of the car.- Most components of the suspension parts are made from 6061-T6 aluminum to increase strength and rigidity.- High Tensile strength performance spring---Tested under a 600,000 time continuous compression test, the spring distortion was less than 0.04%. Plus, the special surface treatment improves the durability and performance.- Adjustment tools included in the kit.Notice- Please double confirm before placing order.- No instruction included; Professional installation is highly recommended.- Please check our store for other auto parts you may be interested in.- Please feel free to contact us for whatever we can help.