About PAC Racing

PAC Racing Springs is a premier USA manufacturer of the highest quality and performance spring products.  From valvetrain products to suspension spring products, PAC Racing innovates to deliver the highest level of quality and craftsmanship.  Magnitude Performance offers an un-paralleled level of experience and knowledge to support and distribute the entire PAC Racing Product line. From catalog components to custom design, let Magnitude help deliver on what you need for your valve train or suspension.