Bilstein B4 Performance Gas Dampers are designed to be direct replacements for your original shock absorbers. Made with gas twin-tube construction, Bilstein design these to offer good-as-new performance. Perfect for a suspension refresh.Performance shock absorbers that suit standard springs or mild lowering spring kitsHigh level of comfort with stable vehicle controlTwin-tube gas shock absorberBilstein B4 shock absorbers are designed to offer like for like performance with OE shock absorbers. Replacing your worn shock absorbers with Bilstein B4's will restore handling and ride comfort to your car.Shock absorbers are a wear item, and can be showing noticable signs of wear long before they would fail an MOT. Worn shock absorbers can effect cornering, braking, acceleration, and tyre life.The legendary Bilstein damping smooths out bumps for an excellent ride, but control and stability are maintained at speed for confidence in all conditions.Bilstein B4's are designed to match your cars ori