Engine Cylinder Head Bolt Set, Victor Reinz (Discontinued)

engine cylinder head bolt set using new head bolts when performing a cylinder head installation is always a good idea however, on late-model engines that came from the factory with tty (torque-to yield) head bolts, replacement is an absolute necessity. Tty bolts are designed to exert the maximum clamping force for a tight head gasket seal, however they permanently stretched and could fail if re-used. aplication summary: audi - 1997-00 a4 l4 1.8l, 1997-00 a4 quattro l4 1.8l, volkswagen - 1998-00 passat l4 1.8l