Our Origin
Founded in 2001, GMG has quickly established itself as North America’s premier performance tuning facility. What began as a small 1200 sq. ft. shop, maintaining two race cars, has grown into a 30,000 sq. ft. state of the art performance tuning, racing and service facility located in (Orange County) Santa Ana, California. The staff, attention to detail, and passion are what make GMG the choice of professionals and enthusiasts world wide. GMG is located directly across from Porsche Motorsport North America (PMNA). This close proximity has allowed GMG to build a strong relationship with the legendary racing brand and that has helped us support our customers to the highest level possible. From Club Racing to Sebring and Daytona, GMG can take you as far as you want to go.
The team at GMG has been racing, building, and servicing European cars for several years. Our professional level of service and commitment to our customers involves providing the highest standards in quality products that the automotive tuning industry has to offer. Whether you need a basic service for your European automobile or you’re getting ready for your first club race or time trial, we can help you enjoy and own that experience by utilizing all of our many years of experience.
