Although reading is part and parcel for the development of L2 literacy skills, such as in reading and writing, the skill has been practiced more often for grammar instruction and literal translation in EFL contexts. While realizing there is less focus on the development of L2 skills through extensive reading (ER) in EFL university contexts,the purpose of the present study was to explore the outcome of an in-class ER approach in English university classrooms. With 249 students, the study reports on the implementation of a university level ER class and the outcome for L2 development via the measures of L2 reading speed, L2 speed reading comprehension, and L2 lexical writing ability. Results indicated positive outcomes for the development of students’ L2reading ability, productive retrieval of academic words and lexical variety. The outcome of the ER program validates the effort and time expended on such programs when graded readers are utilized at matching student Lexile levels.