When I bought my car it came with a load of spares, including a full set of OEM (ATE) brake hoses, still bagged with BMW factory labels. Problem is they were manufactured in 1998, purchased the same year by the owner. They haven't been exposed to UV or humidity or anything else however, would you fit these ?. Visually they appear perfect, will they have degraded over time despite not being exposed to any external factors ?.