Does anyone help me find access to the direction flasher unit's location.
And which unit I could replace it with that will work with LED bulbs.

2008 I4 EXL Navi

Rattmann, there is no relay. The turn signals are controlled by the Turn Signal/Hazard Warning Lights Circuit that is part of the Driver's MICU installed in the Driver's Under-Dash Fuse/Realy Box.

If I am not mistaken most LED bulbs include load resistors to insure proper signal operation. If not you have to install a load resistor in series with the bulb.

Check the various LED supplier's WEB sites.