TURBO200R4
stand up straight and grab the world by the a$$
Personally I first check to see any signs of visible damage / cracking or splits , then pull them from their connectors to make sure the ends are not split and the connectors have not cracked . The plastic connectors do go brittle over time . Silicon vacuum hose is cheap , it's far easier to replace than doubt !
Also if they r hard they break when u bend them and make sure all three r the same length going to the map sensor and u may have rubber plugs on the throttle bodies.