Automotive Technologies Products (ATP) offers extensive coverage for all your transmission needs, plus intake and exhaust manifolds, oil and transmission pans, cabin air filters, and automotive cables for hard-to-find applications. ATP, Inc. was founded on July 1, 1955 and provides top quality products and outstanding service to its valued customers. From its humble 2,000 square foot facility in Chicago providing aftermarket replacement parts for automatic transmissions in 1955, the company has expanded its product offerings, introducing the Graywerks-by-ATP line in 2001, and most recently, becoming a part of LODI Group.