Hi, I started a new topic where we can put specific information related to the specification of hoses, fittings of the HP fuel hoses (Pump to PRV and Fuel line under car to MU). Below I drafted what I learnt so far, mainly from the good knowledge from others on this forum, and some suppliers, like Neil Revingtons website. For low permeability hoses, with no smell at all, the best choise available currently are PTFE (lined) hoses, but these have the disadvantage of a potential for