A set of 10 German manufactured extended studs by Wurth with 10 copper flashed nuts for your Defender or Discovery 2 TD5 manifold.
The TD5 manifold is notorious for problems with snapping studs and warping. These studs are made for made from much stronger steel than the Genuine Land Rover ones and are also slightly longer - this extra length help with heat dissipation whilst the copper flashed nuts allow them to be more easily removed with less risk of breaking.
