Classic Instruments: Provides quality products. Each part is designed and assembled to they're top of the line specifications and tolerances. Component testing at each stage of the assembly process assures the accuracy and reliability they're products are famous for. Each and every one of they're gauges is designed, assembled and calibrated with pride and quality in Boyne City, Michigan. They're proudly "Made in the USA" products are designed and built for street rods by street rodders!