About KMJ Performance:

With hundreds of thousands of performance parts on hand, KMJ Performance is your one stop performance shop! Our showroom features a complete line of parts, and accessories on display. The experience and dedication of our sales staff is the foundation for providing phenomenal technical support.

Our on-site warehouse is fully stocked with row after row of quality parts, and our employees understand the importance of building customer loyalty through accurate, same-day shipping on all your packages.

Victory and Assault Racecars

Victory and Assault Racecars are located inside KMJ Performance in Story City.  Our Chassis shop is led by Randy Havlik.  Randy has some of the best welders and fabricators in the business that have many combined years of experience and strive to exceed their customers expectations.  Whether you are looking for a new Modified, Sport Mod, Stock Car or Hobby Stock, look no further than KMJ Performance.

KMJ Performance is proud of the team of professionals that interact with our customers daily. Our experienced sales staff has years of experience and will give you the professional service you deserve.