We started HPS in 1999 in Irwindale, CA. As the years went by & our business grew, it was time for a larger location. We moved to our current location in Ontario, Ca and realized that we needed to expand by adding HP DYNO SERVICES for our customers. By doing this it has made us a one stop shop for all of your high performance needs in the Southern California area.  Call us for an appointment to schedule your dyno today.