HGM Automotive Electronics is a specialty equipment manufacturer that designs and supplies leading edge electronic systems for automotive aftermarket use. Our best-known products, the COMPUSHIFT family of controllers, have become one of the most recognized automatic transmission controllers in the industry.

Factory race teams, street rod builders and owners, and heavy truck operators all use our products and recognize them as state of the art. We frequently customize our products and transmissions for customers who come to us with specialized requirements.

HGM's founders are all car enthusiasts and are the company's product designers. We pride ourselves on not cutting corners and consistently providing durable, well-engineered systems.

We have never had a customer return a product because they were unsatisfied with its performance. Our company, our products, and many customer success stories have been featured in numerous publications.

Our History

In the 1980's most automobile manufacturers recognized the inherent advantages of a computer-controlled automatic transmission. Government-mandated automobile efficiency and emissions standards, combined with the requirement for drivability and durability from customers, placed a high demand on the engine and transmission controls. Fortunately for the aftermarket enthusiasts, the transmissions that were developed are strong, versatile, and offer great flexibility, provided that an appropriate controller is used.

Without a controller, these transmissions are literally "brain-dead". With a controller, they are tunable to provide high performance for a variety of applications. In 1996, disappointed with the available controllers on the market, the three founders of HGM Automotive Electronics began the development of the COMPUSHIFT. After hundreds of thousands of dollars in engineering and development expenses and hundreds of hours of road testing in many different vehicles, COMPUSHIFT was born.


The HGM product line is continually being enhanced and widened to support more transmissions and specialty applications including hybrid and industrial vehicles.

Made in the USA

We at HGM Automotive Electronics do our best to source and produce our products first here in the USA, and secondly in North America. For example, our COMPUSHIFT II major components are sourced as follows:

  • Case: USA / Mexico
  • Display: Canada
  • Display box: Maple Plain, MN
  • Printed circuit board assembly: Moorpark, CA
  • Wire looms: Santa Fe Springs, CA and Torrance, CA
  • Shipping box: CA
  • Engineering and design: CA
  • Final assembly, configuration, testing, packing, and shipping: Torrance, CA
  • Primary telephone support: Torrance, CA

Unlike some of our competitors, we do not presently outsource manufacturing offshore, and will do our utmost to continue to bring our customers products "Proudly made in the USA!"