In this study, we examine the low energy phenomenological implications of superstring-inspired E6 models. The motivation for such models is reviewed. New particles, including new gauge bosons, exotic fermions, Higgs bosons, and their superpartners are expected to exist in models of this type. Techniques for producing these new particles directly at existing and planned colliders as well as searching for their indirect effects are examined. Other phenomenological implications of such models are also discussed.