Bilstein B4 1980 Audi 4000 Base Rear Twintube Shock Absorber Suspension>Coilovers Where we have already improved

Where we have already improved on other components for improving speed

the couplings included with this torque boost tube kit are engineered to be resistant to cracking and sustain prolonged periods of high-temp conditions

but it's not perfect

Fully Rebuildable

Mishimoto has what you're looking for

Bilstein B4 1980 Audi 4000 Base Rear Twintube Shock Absorber Suspension>Coilovers Where we have already improvedBilstein B4 OE Replacement dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. These dampers are the ideal choice for the driver looking to restore the original performance and handling of their vehicle, with the added benefit of world famous Bilstein quality.