TEIN EnduraPro Plus Dampers Subaru Impreza 4WD (2002 2007) Front Rear Rear Tein EnduraPro Plus Shock Absorbers for BMW 116i 118 120 123D 130i TEIN Endura Pro Plus Shock Absorbers TEIN USA Blog TEIN EnduraPro Plus Dampers Subaru Impreza 4WD (2005 2007) Front Rear TEIN Endura Pro Plus Shock Absorbers TEIN USA Blog TEIN Endura Pro Plus Shock Absorbers TEIN USA Blog. The new TEIN EnduraPro high performance OE shape Shock Absorbers for your 2005 2006 BMW 3 Series 330i Sedan RWD (E90 VB30) have been designed for use with your vehicle's original (OE) spring and upper mount, their lower spring seat is shaped identical to the OE shock absorber. In addition to replacing worn or leaking OE dampers, these products are excellent to improve specs like ride quality or handling without changing your ride height. The TEIN EnduraPro shock absorber are made with a Hydraulic Bump Stopper (H. B. S) that provides increased comfort and height durability at the maximum passenger or cargo load. When regular shock absorbers fully stroke, their bump rubbers are compressed. When the energy that is generated by this compression is released it can disturb the vehicle's behavior. Furthermore, repeated full strokes can damage the damper. In the same situation EnduraPro, featuring H. B. S., internally convert the impact of the stroke to thermal energy (heat) and absorb it, strongly reducing the impact that disturbs the vehicle's behavior. With less damage to the dampers, H. B. S. also contributes to their durability. In shock absorbers with inactive or no H. B. S., the operative valve (green) floats, and oil flows freely through the base valve ports. Resistance to the flow from the shim stack then causes damping force. Near full compression, when the piston rod strokes beyond a predetermined point, the operative valve is pushed down and activates H. B. S.: the base valve ports are narrowed, blocking the oil flow. This results in high damping force. A relief valve serves to suppress sudden damping force increase when the pressure in the cylinder exceeds its regular level. The setup of the H. B. S. mechanism is optimized per vehicle model, with the right activation point and damping force. Note: TEIN Shock Absorbers sold individually. Springs not included. Standard Features Twin Tube SystemCompared to the regular mono tube system, twin tube attains longer strokes with a smaller repulsive force, resulting in high ride comfort. Roads may have all sorts of surface conditions. This calls for shock absorbers with ample stroke, that operate smoothly. Thanks to flexible strokes, you can negotiate gaps and bumps steadily on rough roads, meaning a smooth ride at low speed and stability at high speed. Fortified Installation Points For strut type suspensions a thickness increase improves the strength and durability of the bracket attaching to the vehicle (steering knuckle) compared to OE shock absorbers. This higher rigidity of the knuckle's support also improves steering feel and makes the ride feel more stable. Please note that the thickness increase varies per vehicle model. Fortified Shell Case with Large Oil Capacity The shell case, the key part of the shock absorber, is made of a high strength material with tensile strength around 150% of the OE shell case. Increased weight is curbed by keeping the thickness of the cylinder wall the same. A bigger shell case diameter expands its oil capacity, for improved durability as well as a long term stable damping force performance. High Performance Damper Oil Exhibiting a stable viscosity in a broad temperature range, the high performance damper oil sustains smooth strokes and a reliable damping force under all kinds of circumstances. It has excellent anti foaming properties that protect it from cavitation (bubble forming), and is resistant to overheating, so that it works noiselessly even on rough roads. The damper oil keeps up its superior performance long term, because it is also resistant to deterioration over time. Rustproof Surface Treatment The shell case's bright TEIN green powder paint coating excels in strength and durability, while this coating technique is eco friendly and without organic solvents. After pre treatment, TEIN's patented 2 Layer, 1 Bake powder coating method with corrosion proofing paint is used for superior durability and rust protection. Outstandingly corrosion resistant, EnduraPro can safely be used in regions with heavy snowfall or coastal areas, etc. Specifications Part Number VSJ15 B1MS2 Part Name EnduraPro Plus Shock Absorber Vehicle 2005 2006 BMW 3 Series 330i Sedan RWD (E90 VB30) Chassis VB30 Engine 3000 Position Rear Damping Adjustable Yes Ride Height Adjustable No Upper Mounts OEM Ride Height Range Not Applicable EDFC Compatible No Notes Not tested on M Sport model. Vehicle Fitment 2005 BMW 3 Series 330i Sedan RWD (E90 VB30) 2006 BMW 3 Series 330i Sedan RWD (E90 VB30)