Metal supported cells (MSC) are considered as the next generation of Solid Oxide Fuel Cells due to their robustness and cost-efficiency. However, improvement of their performances for operation below 700°C is a key point, as well as their durability and their manufacturing route. Within the RAMSES EU project, materials, components and processes have been tailored for MSCs. Thus, a metal substrate, with coating, has been optimized, fulfilling the targets of low-cost, sinterability in low-oxidizing atmosphere and oxidation resistance. A customized electrolyte powder allowed decreasing the sintering temperature of 100°C compared to a reference 8YSZ powder. A modified Ni-8YSZ anode as well as a nickelate cathode were found to reach low polarization resistances of respectively 0.37 and less than 0.20 Ohm.cm² at 600°C. The progressive implementation of these materials in MSC has led to improved performances in tubular MSC, with an ASR of 1.56 Ohm.cm² at 600°C. Durability over 500h and 500 thermal cycles have been successfully achieved.