You can finally eliminate the subframe clunk that VW/Audi was never able to resolve. The OEM TSB “fix” does not address the root cause of the clunk because it reuses the OEM hardware. It’s not long before the clunk returns. The failure of the OEM bolts is one of the primary causes of the subframe clunk, and they must be replaced. We have worked with world renowned fastener company ARP to develop custom hardware for this application. The bolts meet National Aerospace Standard for tensile strength yet mimic the oem hardware in shear.They are then nitrided for increased durability. Our collars are machined out of 954 Billet Bronze Alloy for the ultimate in strength and corrosion resistance. It is the combination of this hardware which makes our kit so successful at solving the problem. Finally, a solution that works, is easy to install, and won’t break the bank!