KYB 5550000 Gas-a-Just Rear Shock Absorber

The KYB Gas-a-just monotube shock absorber has additional performance advantages over the traditional twin-tube design: It can instantly, automatically adjust to your performance needs and never experiences fade due to aeration. The KYB Gas-a-just has two separate working chambers: An air-free hydraulic piston and valve area for responsiveness and control, and a second high-pressure nitrogen gas area with a floating piston that provides a comfortable ride during normal driving and adds instant performance on demand. Adds up to 25% more damping performance over original equipment shocks Components and valving designed specifically for BMW 5 Series Gas-a-Just monotubes include additional damping over OE design for vehicles that work, tow, and have larger, heavier tires & wheels High pressure monotube design separates the gas and oil for fade free operation and instant response Fluid leaking can be a cause of shock failure, the KYB Gas-a-just has an ultra-smooth triple chrome plated chrome piston rod to reduce seal wear The higher gas pressure of the KYB Gas-a-Just responds quickly to improve steering response Electronic safety systems depend on the suspension, brakes and tires operating as the vehicle manufacturer intended. The KYB Gas-a-just helps keep Electronic Safety Systems performing as designed. To reduce the chance of noise and vibration KYB recommends installing new strut mounts, part number: SM5767 (lower) and SM5752 (upper) Protect your new struts from dirt, debris and salt with a KYB Strut Boot, part number: SB113

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