Designed and engineered in Australia the Harrop Differential & Transmission Breather Kit has been designed to replace the factory breathers on your vehicle, and keep it breathing clean in the harshest environments. It is a 4 port, fully sealed system that breathes back into the induction system, a design the helps to prevent water, mud and other contaminants from getting into your differentials, gearbox and transfer cases as well as eliminating the use of a filter system; this is essential upgrade for all 4x4 enthusiasts. Key Features: Billet aluminium manifold breather block Left or right mounting capability 4 line input Fully sealed system No filters Universal fitment