Thanks to my knowledge gained in practice, I can say with confidence that these refurbished suspension parts are top-notch .The improvement in handling and ride comfort on my Mercedes-Benz is remarkable. The automotive-grade quality is evident in every COMPONENT, and the installation was straightforward with clear instructions. The only downside is that these parts may not be suitable for those who prioritize cost over quality. Overall I would highly recommend these suspension upgrades to any performance enthusiasts looking to enhance their driving experience..