Concept III Performance is an independent automotive performance parts distribution center and retail shop in Santa Fe Springs, California, established in 2011. They offer a range of services including general maintenance, performance parts installation, engine tuning, and suspension modifications for KDM, JDM, European, and USDM vehicles. The shop is known for its comprehensive services and its owner, William Chang, who reviews customer vehicles on the company's "Customer Complaints" YouTube series.
