J & M Speed Center was established in the Inland Empire in 1957 and continued to grow into one of the Premier Speed Shops, specializing in High Performance Automotive Parts. We settled into the Riverside Auto Center in 1967 and continue to be one of the leaders in providing quality parts to our customers. We are a Warehouse Distributor for all the top brand manufacturers. We are a family owned business dedicated to serving the public into the next generation. Our qualified staff are knowledgeable and are here 6 days a week to better serve your needs.