ApplicationCompatible for BMW 3 (E46) 4-door sedan 330i; 325i; 328i; 318d; 320d; 320i,325i ;330d (02/1998-04/2005)Compatible for BMW 3 2-door Convertible (E46) 330ci; 325ci;323ci; 320cd,330cd (04/2000-12/2007)Compatible for BMW 3 2-door Coupe (E46) 320ci; 325ci; 330ci;320cd; 330cd; (02/1999-12/2006)Compatible for BMW 3 Touring 5-door wagon/estate (E46) 316i; 325i; 328i; 330i; 323i; 325i; 318d; 320d; 330d;Tips: Not for 4WD, xi/xd for 4WD body style only 4-door sedan and 5-door wagonSpecificationQuantity: 2 piece front + 2 pieces rearTop mounts: front pillow ball top mount with camber platerear pillow ball top mountSpring rate Front: 8 kg/mm (392 lbs/in)Spring rate Rear: 7 kg/mm (448 lbs/in) Damping: not availableAdjustable height: YesAdjustable compatible for BMW E46 Top Mount : YesShock type: Twin tubeSpring Preload: 7-10 mmWarranty: one year warranty for any manufacturing defectFeature- Able to lower ride height by 1\'\'-3\'\'; allows user to have a more aggressive stance.- 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.- 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* As it is high performance coil over, few modification might be required for some vehicles* Professional installation is highly recommended (No Instruction Included)* For any needs please contact us You may also be interested in:Rear Lower Control Camber Arm compatible for BMW E46compatible for BMW E46 Adjustable Coilover Suspension Kit Adjustable Damper​