So-Cal Speed Shop is headquartered in what California city?

So-Cal Speed Shop is headquartered in San Dimas, California.

The company’s headquarters are in San Dimas, a city in Los Angeles County’s San Gabriel Valley. That location is different from the shop’s historic origin: founder Alex Xydias opened the first So-Cal Speed Shop in Burbank in 1946.

The original Burbank store helped establish So-Cal as one of Southern California’s early hot-rod parts businesses. Xydias initially focused on selling parts, while the brand’s competition cars built its reputation in land-speed racing and at the Bonneville Salt Flats. The company later developed retail locations beyond its headquarters, including stores in the western United States and Canada.

Burbank is therefore the answer to the founding-location question, not the headquarters question. San Dimas is also distinct from nearby automotive centers such as Pomona and Santa Fe Springs, which are strongly associated with Southern California car culture and motorsports.