Intravascular devices, systems and methods are disclosed. In some instances, an intravascular device is a guidewire that includes a separation section with an engaged core element. For example, the sensing guidewire may include a proximal portion having a proximal core member and at least one proximal electrical conductor, a distal portion coupled to the proximal portion, the distal portion including a distal core member, A sensing element and a distal portion having at least one distal electrical conductor coupled to the sensing element wherein the engagement structures of the proximal and distal core members are engaged and at least one distal The electrical conductor is coupled to the at least one proximal electrical conductor such that the at least one proximal electrical conductor is in electrical communication with the sensing element. Methods for making, manufacturing and / or assembling such endovascular devices and related systems are also provided.
