Founded in 2001, GMG Racing has grown from a 1,200-square-foot shop maintaining two race cars into a 30,000-square-foot performance tuning, racing, and service facility in Santa Ana, in the heart of Orange County, California. Over more than two decades, GMG has established itself as North America's premier destination for Porsche, Audi, Ferrari, Lamborghini, and McLaren performance — built on the expertise of a team that competes, builds, and services European performance cars at the highest levels. Located directly across from Porsche Motorsport North America (PMNA), GMG has developed a close working relationship with the legendary racing brand — a proximity that raises the bar for every customer we serve. From club racing to Sebring and Daytona, GMG can take you as far as you want to go.

The GMG team has spent decades racing, building, and servicing European performance automobiles. That experience shapes everything we do — from routine maintenance to full race builds. Whether you need scheduled service for your Porsche, are preparing your Ferrari for a first track day, or are running a professional race program, GMG brings the same level of commitment and precision to every project.

GMG's standing in the performance automotive industry has been earned through results — on the circuit and in the shop. We carry one of the most comprehensive selections of performance parts and accessories available for European performance vehicles, and every recommendation our team makes is backed by direct, hands-on experience with the products we sell.

GMG works closely with factory dealerships throughout Southern California to ensure our diagnostic tools, software, and procedures reflect the latest factory specifications. Every enhancement is approached with that foundation — precise, data-informed, and engineered to preserve the integrity of your vehicle. Come by the shop, give us a call, or find us at the track. We're always happy to talk cars.