Loyal Performance Auto

At Loyal Performance Auto, we provide honest, reliable and high-quality auto repair you can trust. As locals from the Upland and Rancho Cucamonga area, we're proud ta serve our community with integrity and care.

We offer free diagnostics and specialize in engine and transmission repair, brakes, suspension, electrical work, and routine maintenance. With 10+ vears of experience. We service German and Asian vehicles including BMW, Mercedes-Benz, Audi, Porsche, Toyota, Honda, and more.