Turn5, Inc. | 15,042 followers on LinkedIn. Located on their corporate campus in Paoli, PA, Turn5, Inc. is an e-commerce business specializing in the aftermarket auto parts industry. Founded by Andrew and Steve Voudouris, Turn5, Inc. is the operating company for award winning stores, AmericanMuscle.com, ExtremeTerrain.com and AmericanTrucks.com. Turn5 has grown exponentially and is poised to continue this expansion.