Design Engineering, INC. (DEI)

The late Dale Markley, well known and long time performance industry veteran, founded DEI in 1995. Dale and his wife Nancy formed the company with a vision of developing dynamic solutions for the racing and performance industry's ongoing struggle with underhood, power-robbing heat issues. The business was started in a small space, located in Cleveland, Ohio, behind a convenience store, and within a few years had to double the space. Before Dale's passing in 2001, he and Nancy worked together and brought DEI and its "Thermal Tuning Products" to a whole new level.

Fueled by success and further growth, it was necessary to expand operations, and in late 2004, DEI relocated from its leased location to its newly acquired complex that houses office, warehouse and manufacturing operations. The new facility afforded DEI ample room for future expansion and, in fact, manufacturing and warehouse expansion plans were quickly underway.

Today, DEI is bigger, stronger, and "cooler" than ever. With Dale's son David at the helm, the family is committed to continuing Dale's vision of moving DEI forward by developing and improving products to ensure they remain industry leaders.